Thursday 31 May 2012

Vicks Vitamin C Drops


Generic Name: ascorbic acid (vitamin C) (as KORE bik AS id)

Brand Names: Acerola, Ascorbic Acid Quick Melts, C-Time, C/Rose Hips, Cecon, Cemill 1000, Cemill 500, Ester-C, N Ice with Vitamin C, Sunkist Vitamin C, Vicks Vitamin C Drops, Vitamin C, Vitamin C TR, Vitamin C with Rose Hips


What is ascorbic acid?

Ascorbic acid (vitamin C) occurs naturally in foods such as citrus fruit, tomatoes, potatoes, and leafy vegetables. Ascorbic acid is important for bones and connective tissues, muscles, and blood vessels. Vitamin C also helps the body absorb iron, which is needed for red blood cell production.


Ascorbic acid is used to treat and prevent vitamin C deficiency.


Ascorbic acid may also be used for other purposes not listed in this medication guide.


What is the most important information I should know about ascorbic acid?


You should not use this medication if you have ever had an allergic reaction to ascorbic acid.

Ask a doctor or pharmacist about using ascorbic acid if you have kidney disease or a history of kidney stones, liver disease (especially cirrhosis), or an enzyme deficiency called glucose-6-phosphate dehydrogenase deficiency (G6PD).


It is not known whether ascorbic acid is harmful to an unborn baby or a nursing baby. Some vitamins and minerals are needed during pregnancy or for breast milk production, but some may be harmful if taken in large doses. Do not take ascorbic acid without telling your doctor if you are pregnant or breast-feeding.

Ascorbic acid can be harmful to the kidneys, and this effect is increased when ascorbic acid is used together with other medicines that can harm the kidneys. Before taking ascorbic acid, tell your doctor if you are receiving chemotherapy, or using medicines to treat a bowel disorder, medication to prevent organ transplant rejection, antiviral medications, pain or arthritis medicines, or any injected antibiotics. You may need dose adjustments or special tests when taking any of these medications together with ascorbic acid.


Before taking ascorbic acid, tell your doctor about all other medications you take.


Stop using ascorbic acid and call your doctor at once if you have severe pain in your lower back or side, blood in your urine, pain when you urinate, severe or ongoing diarrhea, or feel like you might pass out.

What should I discuss with my healthcare provider before taking ascorbic acid?


You should not use this medication if you have ever had an allergic reaction to ascorbic acid.

Ask a doctor or pharmacist about using ascorbic acid if you have:


  • kidney disease or a history of kidney stones;

  • liver disease (especially cirrhosis); or


  • an enzyme deficiency called glucose-6-phosphate dehydrogenase deficiency (G6PD).




It is not known whether ascorbic acid is harmful to an unborn baby. Some vitamins and minerals can harm an unborn baby if taken in large doses. You may need to use a prenatal vitamin specially formulated for pregnant women. Do not take ascorbic acid without telling your doctor if you are pregnant. Ascorbic acid can pass into breast milk, but it is not known whether it would be harmful to a nursing baby. Some vitamins and minerals are needed for breast milk production, but some may harm a nursing baby. Do not take ascorbic acid without telling your doctor if you are breast-feeding a baby.

How should I take ascorbic acid?


Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.


The recommended dietary allowance of ascorbic acid increases with age, and whether you are pregnant or breast-feeding. Follow your doctor's instructions. You may also consult the National Academy of Sciences "Dietary Reference Intake" or the U.S. Department of Agriculture's "Dietary Reference Intake" (formerly "Recommended Daily Allowances" or RDA) listings for more information.


Take the ascorbic acid regular tablet or capsule with a full glass (8 ounces) of water.

The ascorbic acid chewable tablet must be chewed before swallowing. Ascorbic acid gum may be chewed over a long period and then spit out and thrown away.


Remove the disintegrating tablet from the package using dry hands, and place the tablet in your mouth. It will begin to dissolve right away. Do not swallow the tablet whole. Allow it to dissolve in your mouth without chewing. Swallow several times as the tablet dissolves.


Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.


Dissolve the powder form of ascorbic acid in a small amount of water or other liquid. Follow the directions on the package label about what types of liquid you may use. Stir the mixture and drink all of it right away. To make sure you get the entire dose, add a little more water to the same glass, swirl gently and drink right away.


Store ascorbic acid at room temperature away from moisture and heat.

What happens if I miss a dose?


Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.


What happens if I overdose?


Seek emergency medical attention if you think you have used too much of this medicine.

An overdose of ascorbic acid is not likely to cause life-threatening symptoms.


What should I avoid while taking ascorbic acid?


Follow your doctor's instructions about any restrictions on food, beverages, or activity.


Smoking can make ascorbic acid less effective.

Ascorbic acid side effects


Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. Stop using ascorbic acid and call your doctor at once if you have a serious side effect such as:

  • severe pain in your lower back or side;




  • blood in your urine;




  • pain when you urinate;




  • severe or ongoing diarrhea; or




  • feeling like you might pass out.



Less serious side effects may include:



  • heartburn, stomach cramps;




  • nausea, vomiting, diarrhea;




  • headache, dizziness;




  • flushing (warmth, redness, or tingling under your skin);



This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


What other drugs will affect ascorbic acid?


Ascorbic acid can be harmful to the kidneys, and this effect is increased when ascorbic acid is used together with other medicines that can harm the kidneys. Before taking ascorbic acid, tell your doctor if you are receiving chemotherapy, or using medicines to treat a bowel disorder, medication to prevent organ transplant rejection, antiviral medications, pain or arthritis medicines, or any injected antibiotics.


You may need dose adjustments or special tests when taking any of these medications together with ascorbic acid.


The following drugs can interact with ascorbic acid. Tell your doctor if you are using any of these:



  • aspirin or acetaminophen (Tylenol);




  • fluphenazine (Permitil);




  • indinavir (Crixivan);




  • levodopa (Atamet, Larodopa, Parcopa, Sinemet);




  • nicotine patches (Nicoderm, Habitrol, Commit);




  • antacids that contain aluminum (such as Amphojel, Maalox, Mylanta, Rulox, and others);




  • an antibiotic such as demeclocycline (Declomycin), doxycycline (Adoxa, Doryx, Oracea, Vibramycin), minocycline (Dynacin, Minocin, Solodyn, Vectrin), or tetracycline (Brodspec, Panmycin, Sumycin, Tetracap); or




  • a barbiturate such as butabarbital (Butisol), secobarbital (Seconal), pentobarbital (Nembutal), or phenobarbital (Solfoton);




  • birth control pills or hormone replacement therapy, including Premarin, Estratest, Vivelle, Climara, Estring, Estrace, and others; or




  • a blood thinner such as warfarin (Coumadin).



This list is not complete and there may be other drugs that can interact with ascorbic acid. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.



More Vicks Vitamin C Drops resources


  • Vicks Vitamin C Drops Side Effects (in more detail)
  • Vicks Vitamin C Drops Use in Pregnancy & Breastfeeding
  • Vicks Vitamin C Drops Drug Interactions
  • Vicks Vitamin C Drops Support Group
  • 0 Reviews for Vicks Vitamin C - Add your own review/rating


  • Ascorbic Acid Monograph (AHFS DI)

  • ascorbic acid Advanced Consumer (Micromedex) - Includes Dosage Information

  • Ascorbic Acid MedFacts Consumer Leaflet (Wolters Kluwer)

  • Acerola Natural MedFacts for Consumers (Wolters Kluwer)

  • Acerola Natural MedFacts for Professionals (Wolters Kluwer)

  • Cecon Solution MedFacts Consumer Leaflet (Wolters Kluwer)

  • Cenolate Injection MedFacts Consumer Leaflet (Wolters Kluwer)

  • Cevi-Bid Controlled-Release Capsules MedFacts Consumer Leaflet (Wolters Kluwer)



Compare Vicks Vitamin C Drops with other medications


  • Dietary Supplementation
  • Scurvy
  • Urinary Acidification


Where can I get more information?


  • Your doctor, pharmacist, or health care provider may have more information about ascorbic acid.

See also: Vicks Vitamin C side effects (in more detail)


Tuesday 29 May 2012

Progestins


Class: Contraceptives
ATC Class: G03FA10
VA Class: HS200
CAS Number: 54048-10-1
Brands: Implanon, Micronor, Mirena, Next Choice, Nor-QD, Plan B One-Step

Introduction

Contraceptives containing synthetic progestinic steroids.106 117 119 120 125 a


Uses for Progestins


Contraception


Prevention of conception in women.117 119 120 125 a


Predominantly used by women who are breastfeeding and in those who do not tolerate estrogens or in whom estrogens are contraindicated.b


Levonorgestrel-releasing intrauterine system (Mirena): Intended for women who have had ≥1 child; are in a stable, mutually monogamous relationship; have no history of pelvic inflammatory disease (PID); and have no history of ectopic pregnancy or any condition that would predispose to ectopic pregnancy.117


Postcoital (Emergency) Contraception


Prevention of conception after unprotected intercourse (including known or suspected contraceptive failure) as an emergency contraceptive (“morning-after” pills). 101 102 106 126 127 128 129 130 132 Postcoital (emergency) contraceptive regimens are not as effective as most other forms of long-term contraception and should not be used as routine forms of contraception.106 126 127 132


An emergency contraceptive regimen employing a progestin alone (levonorgestrel) appears to be more effective and better tolerated than a common estrogen-progestin emergency contraceptive (“Yuzpe”) regimen when the regimens are initiated within 72 hours of unprotected intercourse, and therefore, generally is preferred when readily available.101 102 126 127 128 129


Progestins Dosage and Administration


Administration


Administer norethindrone orally.119 120


Administer levonorgestrel orally or as an intrauterine system.106 117 132


Administer etonogestrel implant by sub-Q insertion.125


Oral Administration


Contraception

Take as near as possible to the same time each day (i.e., at regular 24-hour intervals) and continue daily without interruption to ensure maximum contraceptive efficacy.119 120


If vomiting occurs soon after a dose, use a back-up method of contraception (e.g., condoms, foam, sponges) for 48 hours.119 120


Available in a mnemonic dispensing package designed to aid the user in complying with the prescribed dosing regimen.119 120


Postcoital (Emergency) Contraception

Plan B One-Step, Next Choice: Administer as soon as possible but preferably within 72 hours following unprotected sex.106 132


Most data support administration of the first dose up to 120 hours after unprotected intercourse if necessary,126 127 128 but efficacy decreases as initiation of contraception becomes more remote from unprotected intercourse.101 102 103 126 127 128


May be used at any time during the menstrual cycle.106 132 Efficacy not established if administered >120 hours after unprotected sex.126 127


Plan B One-Step: If vomiting occurs within 2 hours after administration, consider repeating the dose.132


Next Choice: If vomiting occurs within 1 hour after administration, the woman should contact her healthcare provider to discuss repeating the dose.106


Food not effective in reducing adverse GI effects (i.e., nausea).126 127


Sub-Q Administration


Insert etonogestrel implant (Implanon) subdermally in the inner aspect of the upper arm about 6–8 cm above the elbow crease.125 Consult manufacturer’s labeling for proper method of administration and associated precautions.125


Intrauterine Administration


Insert levonorgestrel-releasing intrauterine system (Mirena) into the uterine cavity under strict aseptic conditions.117 (See Intrauterine Device Considerations under Cautions.) Consult manufacturer’s labeling for proper methods of inserting and removing the intrauterine system and for associated precautions.117


Dosage


When switching contraceptive methods, initiate new therapy in a manner that ensures continuous contraceptive coverage based on the mechanism of action of both methods.117 119 120 125


Adults


Contraception

Oral

Norethindrone: 0.35 mg daily.119 120 Take 1 tablet each day and continue daily without interruption.119 120 Start on the first day of the menstrual cycle.119 120 If the first dose is taken on another day, use back-up method of contraception (e.g., condom, spermicide) for each sexual encounter for the next 48 hours.119 120


Women switching from estrogen-progestin oral contraceptives: Start norethindrone on the day after the last hormonally active tablet.119 120


Women may start using norethindrone tablets on the next day after a miscarriage or an abortion.119 120


Women whose infants are only partially breast-fed may begin norethindrone 3 weeks after delivery.119 120 Women who are exclusively breast-feeding their infants may begin 6 weeks after delivery.119 120


When a dose is taken >3 hours late or if one or more consecutive doses are missed, take the missed dose as soon as remembered, then resume regular schedule; use a back-up method of contraception (e.g., condom, spermicide) for 48 hours.119 120 If unsure of what drug regimen to take as a result of missed tablets, use a back-up method of contraception for each sexual encounter and take one tablet daily until clinician contacted.119 120


Sub-Q

Etonogestrel contraceptive implant (Implanon): One 68-mg implant every 3 years.125


To initiate therapy in women who did not use hormonal contraception in the preceding month, insert the contraceptive implant on or before day 5 of the cycle; a back-up method of contraception is not needed.125


Women switching from estrogen-progestin oral contraceptives, contraceptive transdermal system, or vaginal contraceptive ring: Insert the contraceptive implant within 7 days of the last hormonally active tablet, removal of a transdermal patch, or removal of the vaginal ring; a back-up method of contraception is not needed.125


Women switching from progestin-only oral contraceptives: Insert the contraceptive implant on any day of the month (without skipping any day between receiving the last progestin oral contraceptive and the initial administration of the implant); a back-up method of contraception is not needed.125


Women switching from a progestin-only contraceptive injection: Insert the contraceptive implant on the same day as the next contraceptive injection would have been due; a back-up method of contraception is not needed.125


Women switching from a progestin-containing intrauterine device: Insert the contraceptive implant on the same day as the intrauterine device is removed; a back-up method of contraception is not needed.125


The contraceptive implant can be inserted immediately after a first-trimester abortion.125 If therapy with the contraceptive insert is not initiated within 5 days of a first-trimester abortion, follow the instructions for women who did not use hormonal contraception in the preceding month.125


The contraceptive implant can be inserted 21–28 days after a second-trimester abortion.125


The contraceptive implant can be inserted 21–28 days postpartum in women who are not exclusively breast-feeding; a back-up method of contraception is not needed.125 The implant can be inserted after the fourth postpartum week in women who are exclusively breast-feeding their infant.125 If implant insertion occurs >4 weeks postpartum, use back-up method of contraception for 7 days.125


Remove implant 3 years after insertion.125 At time of implant removal, may insert another implant to continue therapy.125


Intrauterine

Levonorgestrel-releasing intrauterine contraceptive system (Mirena): One system containing 52 mg every 5 years.117


To initiate therapy, insert the intrauterine contraceptive system within 7 days of menses onset.117


The intrauterine contraceptive system can be inserted immediately after a first-trimester abortion; delay insertion until involution of the uterus is complete after a second-trimester abortion.117


The intrauterine contraceptive system should not be inserted until 6 weeks postpartum or after involution of the uterus is complete.117


Remove the intrauterine contraceptive system after 5 years of use (contraceptive efficacy >5 years not established).117 At time of system removal, may insert another intrauterine contraceptive system to continue therapy; removal and replacement with a new system can be done at any time during the menstrual cycle.117


For women with regular menstrual cycles who wish to initiate an alternative contraceptive method, remove the intrauterine system during the first 7 days of a menstrual cycle and start new method.117 For those with irregular cycles or amenorrhea or for those in whom the system is removed after the seventh day of the menstrual cycle, initiate the new contraceptive method at least 7 days before removal of the intrauterine system.117


Postcoital (Emergency) Contraception

Oral

Plan B One-Step: Single 1.5-mg dose taken as soon as possible within 72 hours of unprotected intercourse.132


Next Choice: 0.75-mg dose taken as soon as possible within 72 hours of unprotected intercourse, followed by a second 0.75-mg dose 12 hours later.101 102 106


If necessary, the first dose can be administered up to120 hours after unprotected intercourse,126 127 128 but efficacy decreases the longer initiation of contraception is delayed.101 102 103 126 127 128 129


Repeated postcoital (emergency) contraception use indicates need for counseling about other contraceptive options.126 131 Safety of recurrent use not established but risk appears low, even within same menstrual cycle.126 131 Consider possibility that risk of adverse effects may be increased with frequently repeated postcoital contraception.131


FDA has approved Plan B One-Step for OTC status for women ≥17 years of age.132 Plan B One-Step and Next Choice are prescription-only preparations for women <17 years of age.106 132


Cautions for Progestins


Contraindications



  • Known or suspected pregnancy.106 117 119 120 125 132




  • Undiagnosed vaginal bleeding.117 119 120 125




  • Known or suspected breast cancer.117 119 120 125




  • Benign or malignant liver tumor.117 119 120 125




  • Liver disease.117 119 120 125




  • Current or past history of thrombosis or thromboembolic disorders.125




  • Levonorgestrel-releasing intrauterine contraceptive system also is contraindicated in women with uterine abnormalities that distort the uterine cavity (e.g., fibroids), PID or history of PID (unless there has been a subsequent intrauterine pregnancy), postpartum endometritis or infected abortion in the past 3 months, untreated acute cervicitis or vaginosis, conditions associated with immune compromise (e.g., HIV, leukemia, IV drug abuse), a previously inserted IUD still in place, genital actinomycosis, history of ectopic pregnancy or predisposition for ectopic pregnancy, known or suspected uterine or cervical neoplasia, abnormal Papanicolaou test (Pap smear), and in women with multiple sexual partners or whose partners have multiple sexual partners.117




  • Postcoital (emergency) contraception: Manufacturer states that not known whether the conditions for contraindications of progestin-only oral contraceptives apply to the postcoital contraceptive regimen.106 Most experts state that there currently is no real contraindication to postcoital (emergency) contraception with the recommended levonorgestrel regimens and that the benefits generally outweigh any theoretical or proven risk.126 127 131




  • Hypersensitivity to the drug or any ingredient in the formulation.106 117 119 120 125



Warnings/Precautions


Warnings


Ectopic Pregnancy

Consider the possibility of ectopic pregnancy if pregnancy or severe abdominal pain occurs in women using progestin contraception, including those using postcoital (emergency) regimens.106 117 119 120 125 132 Current evidence does not support increased risk of ectopic pregnancy after use of levonorgestrel for postcoital (emergency) contraception in the general population; rather, preventing pregnancy overall actually reduces absolute risk.126 127 Postcoital contraception with levonorgestrel can be used in women with history of ectopic pregnancy.106 131 132


Ovarian Follicles

Possible delayed atresia of ovarian follicles, resulting in follicular enlargement.117 119 120 125 Follicular enlargement generally is asymptomatic or associated with mild abdominal pain and resolves spontaneously; in rare cases, surgery may be required.117 119 120 125


Bleeding Irregularities

Possible breakthrough bleeding or irregular vaginal bleeding.117 119 120 125 Perform adequate diagnostic tests in patients with undiagnosed vaginal bleeding.117 119 120 125 Rule out pregnancy in patients with amenorrhea.117 119 120 125 If pregnancy occurs, discontinue therapy.117 119 120 125


Postcoital (emergency) contraception: Irregular vaginal bleeding also possible with postcoital contraceptive regimens;106 126 132 rule out pregnancy if menses is delayed >7 days after anticipated onset.106 132


Carcinoma of Breast and Reproductive Organs

Insufficient data to determine whether use of progestin-only contraceptives is associated with an increased risk of breast cancer or cervical carcinoma.117 119 120 125 (See Contraindications under Cautions.)


Hepatic Effects

Insufficient data to determine whether use of progestin-only contraceptives is associated with increased risk of hepatocellular carcinoma.119 120 (See Contraindications and also see Hepatic Impairment under Cautions.)


Implant Considerations

Carefully follow recommended procedures for insertion and removal of implant to minimize potential for complications.125


If infection develops at insertion site, initiate appropriate treatment; if infection persists, remove the implant.125


Intrauterine Device Considerations

Evaluate women for suitability (i.e., exclude pregnancy; evaluate for genital infections, risk for ectopic pregnancy, and/or PID) prior to insertion of levonorgestrel-releasing intrauterine device.117 Insert the device under strict aseptic conditions.117


Possible complications include intrauterine pregnancy with the device in place; if this occurs, remove device to reduce possibility of complications to the woman (e.g., septicemia, septic shock, death) and fetus (e.g., miscarriage, sepsis, premature labor, premature delivery).117 Long-term effects unknown if pregnancy is continued with the intrauterine device in place.117 (See Fetal/Neonatal Morbidity and Mortality under Cautions.)


Sepsis following insertion of the device reported rarely.117 Increased risk of infective endocarditis in women with valvular or congenital heart disease and in those with surgically constructed systemic-pulmonary shunts; prophylactic anti-infective therapy recommended at time of insertion for women with congenital heart disease.117


Other complications include penetration or embedment of the device in the myometrium and perforation of the uterus or cervix.117


Fetal/Neonatal Morbidity and Mortality

Congenital abnormalities reported infrequently in neonates born to women with a levonorgestrel-releasing intrauterine device in place during the pregnancy.117


Thromboembolic Disorders

Thromboembolic events (i.e., pulmonary embolism, stroke) reported in patients using etonogestrel implant (Implanon).125


General Precautions


Physical Examination and Follow-up

Annual medical history and physical examination advised with long-term progestin therapy.117 119 120 125 Physical examination may be deferred until after initiation of oral contraceptives if requested by the woman and judged appropriate by the clinician.119 120 Complete medical examination should be performed prior to initiating therapy with etonogestrel implant or levonorgestrel-releasing intrauterine system.117 125 Exercise particular care in women with family history of breast cancer or those who have breast nodules.125


Metabolic Effects

Slight deterioration in glucose tolerance and increases in plasma insulin reported.117 119 120 125 Monitor prediabetic and diabetic patients.106 117 119 120 125


Altered lipid metabolism (decreased HDL, HDL2, apolipoprotein A-I and A-II; increased hepatic lipase) noted; no change in total cholesterol, LDL, VLDL, or HDL3 observed.119 120 Closely monitor women with hyperlipidemia.125


Ocular Effects

Obtain ophthalmologist assessment for contact lens wearers who develop visual disturbances or changes in lens tolerance.125


Depression

Exercise caution in women with a history of depression; discontinue if severe depression recurs during use.125


Headache

Discontinue contraceptive and evaluate cause if migraine occurs or is exacerbated, or when new headache pattern develops that is recurrent, persistent, or severe.119 120


HIV and STDs

Does not protect against HIV infection or other sexually transmitted diseases (STDs).106 127 131 132


Specific Populations


Pregnancy

Levonorgestrel-releasing intrauterine contraceptive system (Mirena): Category X.117


Rule out pregnancy prior to initiating therapy.117 119 120 125 Rule out pregnancy in patients with amenorrhea.117 119 120 125 If pregnancy occurs, discontinue therapy.117 119 120 125


Postcoital (emergency) contraception: No need to rule out pregnancy with postcoital contraceptive regimens.126 127 128 Postcoital contraceptive regimens (i.e., levonorgestrel, estrogen-progestins regimens) do not exhibit abortifacient properties126 127 128 and do not interrupt pregnancy once endometrial implantation has occurred.106 126 127 128 132 No known harm to pregnant woman, course of pregnancy, or fetus from postcoital contraceptive regimens.126 127 128 131


Most studies have revealed no effects on fetal development associated with long-term use of oral progestin contraceptives.106 119 120 126 127 128


Lactation

Small amounts of progestins are distributed into milk.117 119 120 125 Adverse effects, such as jaundice, reported rarely in infants.120


Postcoital (emergency) contraception: Nursing can continue during postcoital contraceptive regimens.106 131


Pediatric Use

Safety and efficacy of progestin contraceptives have been established in women of reproductive age.106 117 119 120 125 132 Safety and efficacy are expected to be identical for postpubertal adolescents <16 years of age and users ≥16 years of age.106 119 120 125 128 Not indicated before menarche.106 117 119 120 125 132


Geriatric Use

Progestin contraceptives have not been evaluated in women >65 years of age and are not indicated in this population.117 125


Hepatic Impairment

Steroid hormones (including oral contraceptives) may be poorly metabolized in patients with hepatic dysfunction; use with caution in those individuals.125 (See Contraindications under Cautions.)


Postcoital (emergency) contraception: No precautions appear necessary with short-term postcoital contraceptive regimens; benefits outweigh any theoretical or known risk.126 131


Common Adverse Effects


Norethindrone tablets: Bleeding irregularities (e.g., frequent or irregular bleeding), headache, breast tenderness, nausea, dizziness.119 120


Levonorgestrel tablets: Nausea, abdominal pain, fatigue, headache, menstrual changes (e.g., heavier or lighter menstrual bleeding), dizziness, breast tenderness.106 126 127 128 129 132 Postcoital (emergency) contraceptive regimens better tolerated with levonorgestrel than with estrogen-progestins.126 127 128 129


Etonogestrel implants: Bleeding irregularities (e.g., frequent, heavy, or prolonged bleeding, spotting).125


Levonorgestrel-releasing intrauterine system: Abdominal pain, leukorrhea, headache, vaginitis, back pain, breast pain, acne, depression, hypertension, upper respiratory infection, nausea, nervousness, dysmenorrhea, weight increase, skin disorder, decreased libido, abnormal Pap smear, sinusitis.117


Interactions for Progestins


Specific Drugs

























Drug



Interaction



Anticonvulsants (carbamazepine, felbamate, oxcarbazepine, phenytoin, topiramate)



Possible reduced contraceptive efficacy106 119 120 125 132



Antifungal agents, azole



Possible increased plasma concentrations of contraceptive steroids with itraconazole or ketoconazole125



Anti-infective agents



Interaction unlikely with most anti-infective agents106 119



Antiretroviral agents



Possible changes in pharmacokinetics of orally administered progestins with some HIV protease inhibitors120 125 132 c



Barbiturates



Possible reduced contraceptive efficacy106 119 120 125 132



Bosentan



Possible reduced contraceptive efficacy132



Griseofulvin



Possible reduced contraceptive efficacy125 132



Modafinil



Possible reduced contraceptive efficacy125



Rifampin



Possible reduced contraceptive efficacy106 119 120 125 132



St. John’s wort (Hypericum perforatum)



Possible reduced contraceptive efficacy120 125 132


Progestins Pharmacokinetics


Absorption


Bioavailability


Levonorgestrel: Rapidly absorbed following oral administration with peak plasma concentrations achieved in 1.6–1.7 hours.106 132 Bioavailability is about 100%.106


Norethindrone: Rapidly absorbed following oral administration with peak plasma concentrations achieved in 1–2 hours.119 120


Etonogestrel: Approximately 100% bioavailable following sub-Q administration.125 Following sub-Q insertion of etonogestrel implant, the drug is released at a rate of 60–70 mcg/day at week 5–6, 35–45 mcg/day at the end of year one, 30–40 mcg/day at the end of year two, and 25–30 mcg/day at the end of year three.125 Peak serum concentrations achieved in a few weeks following insertion of the implant.125


Levonorgestrel: Following insertion of a levonorgestrel-containing intrauterine system, drug is released into the uterine cavity at a rate of 20 mcg/day; rate of drug release decreases over time to about 10 mcg/day after 5 years of use.117


Food


Effect of food on oral bioavailability not studied.106 120 132


Distribution


Extent


Distributed into human milk.117 119 120 125


Plasma Protein Binding


Levonorgestrel: 50% bound to albumin and 47.5% bound to sex hormone binding globulin (SHBG).106 117


Norethindrone: 61% bound to albumin and 36% bound to SHBG.120


Etonogestrel: 66% bound to albumin and 32% bound to SHBG.125


Elimination


Metabolism


Etonogestrel is metabolized in the liver by CYP3A4.125


Norethindrone is metabolized mainly by reduction, followed by sulfate and glucuronide conjugation.120


Elimination Route


Progestins are excreted in urine and feces, principally as metabolites and glucuronide and sulfate conjugates.106 117 119 120 125 132


Half-life


Levonorgestrel (single oral dose): 24.4–27.5 hours.106 132


Norethindrone (single oral dose): Approximately 8 hours.120


Etonogestrel: Approximately 25 hours.125


Stability


Storage


Oral


Tablets

Levonorgestrel: 20–25°C.106 132


Norethindrone: 25°C (may be exposed to 15–30°C).119 120


Implant


Etonogestrel implant (Implanon): 25°C (may be exposed to 15–30°C).125 Protect from light; avoid direct sunlight.125


Intrauterine System


Levonorgestrel-releasing intrauterine system (Mirena): 25°C (may be exposed to 15–30°C).117 System is supplied sterile; do not resterilize or use device if inner package is damaged or opened.117


ActionsActions



  • Progestin contraceptives produce contraceptive effects by suppressing ovulation, thickening cervical mucus (thus inhibiting sperm migration into the uterus), lowering mid-cycle LH and FSH peaks, slowing ovum movement through the fallopian tubes, and/or alteration of the endometrium.117 119 120 125 126 127 a




  • Progestin contraceptives administered after intercourse (postcoital) produce contraceptive effects by inhibiting or delaying ovulation.106 126 132 Recent evidence suggests that any endometrial effects are insufficient to prevent implantation.126 127 Effects on ovulation alone cannot explain efficacy of postcoital (emergency) contraceptive; interference of sperm transport or penetration and/or impairment of corpus luteum function proposed as contributing factors.126 127 Only effective before pregnancy is established; not effective after implantation of a fertilized ovum.106 126 127 128 132



Advice to Patients



  • Importance of reading the manufacturer’s patient information.106 117 119 120 125 132




  • Importance of taking progestin-only oral contraceptives at the same time each day, without interruption (including during all bleeding episodes).119 120




  • Importance of using a backup method of contraception (e.g., condoms, spermicides) for each sexual encounter during the next 48 hours when a progestin-only oral contraceptive dose is ≥3 hours late.119 120




  • Next Choice postcoital (emergency) contraception: Importance of scheduling the initial dose as conveniently as possible (preferably no later than 72 hours after intercourse if possible) and of taking the second dose 12 hours after the initial dose.106




  • Postcoital (emergency) contraception: Therapy can be initiated up to 120 hours after intercourse if necessary, but advise of decreased efficacy as time from intercourse to initiation of contraception increases.126 127 128




  • Postcoital (emergency) contraception: Importance of consulting clinician about alternative methods of contraception if postcoital contraception is used repeatedly.127 131




  • Importance of informing women that progestin-only contraceptives, like all nonbarrier contraceptive methods, do not protect against HIV infection or other sexually transmitted diseases.106 117 119 120 125 132




  • Importance of advising patients of anticipated menstrual effects.117 119 120 125




  • Importance of women informing a clinician if prolonged (i.e., >8 days) or unusually heavy bleeding, amenorrhea, or severe abdominal pain occurs.117 119 120 125




  • Importance of women informing clinician if they are or plan to become pregnant or plan to breast-feed.106 117 119 120 125 Plan to breast-feed not relevant for postcoital (emergency) contraceptive regimens.126 127 128




  • Importance of women informing clinician of existing or contemplated concomitant therapy, including prescription and OTC drugs, as well as concomitant illnesses.117 119 120 125




  • Importance of informing patients of other important precautionary information.106 117 119 120 125 (See Cautions.)



Preparations


Excipients in commercially available drug preparations may have clinically important effects in some individuals; consult specific product labeling for details.


FDA has approved Plan B One-Step for OTC status for women ≥17 years of age; the contraceptive remains a prescription-only preparation for women <17 years of age.132 A commercial version of Plan B One-Step in a package that meets the prescription and OTC labeling requirements is available.132 Next Choice is a prescription-only preparation for women <17 years of age.106


The manufacturer (Wyeth) of levonorgestrel for sub-Q implantation (Norplant) ceased production of the implants and, because of ongoing shortages with product component supplies, has no plans to reintroduce them in the US.a The implant has not been available since August 2000.109 110













Etonogestrel

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Parenteral



Implant



68 mg



Implanon



Organon























Levonorgestrel

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Intrauterine



Intrauterine System



52 mg



Mirena



Berlex



Oral



Tablets



0.75 mg



Next Choice (available in pack of 2 tablets)



Watson



1.5 mg



Plan B One Step



Duramed


















Norethindrone (Norethisterone)

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Oral



Tablets



0.35 mg



Micronor



Ortho-McNeil



Nor-Q.D.



Watson


Comparative Pricing


This pricing information is subject to change at the sole discretion of DS Pharmacy. This pricing information was updated 05/2011. Actual costs to patients will vary depending on the use of specific retail or mail-order locations and health insurance copays.


Prometrium 100MG Capsules (ABBOTT): 30/$68.99 or 90/$184.98


Prometrium 200MG Capsules (ABBOTT): 30/$121.99 or 90/$335.97



Disclaimer

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.


The American Society of Health-System Pharmacists, Inc. and Drugs.com represent that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. and Drugs.com make no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. and Drugs.com do not endorse or recommend the use of any drug. The information is not a substitute for medical care.

AHFS Drug Information. © Copyright, 1959-2011, Selected Revisions May 01, 2010. American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland 2081

Saturday 26 May 2012

Entuss Liquid


Pronunciation: hye-droe-KOE-done/poe-TASS-ee-um gwye-a-kole-SUL-foe-nate
Generic Name: Hydrocodone/Potassium Guaiacolsulfonate
Brand Name: Examples include Entuss and Mintuss NX


Entuss Liquid is used for:

Relieving cough and throat and airway irritation due to colds, flu, or hay fever. It may also be used for other conditions as determined by your doctor.


Entuss Liquid is a cough suppressant and expectorant combination. It works by loosening mucus and lung secretions in the chest, and making coughs more productive. The cough suppressant works in the brain to help decrease the cough reflex to reduce a dry cough.


Do NOT use Entuss Liquid if:


  • you are allergic to any ingredient in Entuss Liquid or any other codeine or morphine-related medicine (eg, oxycodone)

  • you are taking sodium oxybate (GHB)

  • you have increased pressure in the brain, trouble breathing, or diarrhea due to antibiotic use

Contact your doctor or health care provider right away if any of these apply to you.



Before using Entuss Liquid:


Some medical conditions may interact with Entuss Liquid. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:


  • if you are pregnant, planning to become pregnant, or are breast-feeding

  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement

  • if you have allergies to medicines, foods, or other substances

  • if you have a history of glaucoma, an enlarged prostate gland or other prostate problems, heart problems, diabetes, high blood pressure, blood vessel problems, stroke, adrenal gland problems, or an underactive thyroid

  • if you have a history of stomach problems, bowel problems (eg, chronic inflammation or ulceration of the bowel), or gallbladder problems (eg, gallstones), or if you have had recent abdominal surgery

  • if you have breathing or lung problems (eg, asthma, chronic bronchitis, emphysema), or chronic obstructive pulmonary disease (COPD), or if cough occurs with large amounts of mucus

  • if you have recently had any head injury, brain injury or tumor, infection of the brain or nervous system, epilepsy, or seizures

  • if you have a history of alcohol abuse, drug abuse, or suicidal thoughts or behavior

Some MEDICINES MAY INTERACT with Entuss Liquid. Tell your health care provider if you are taking any other medicines, especially any of the following:


  • Cimetidine because it may increase the risk of Entuss Liquid's side effects

  • Barbiturates (eg, phenobarbital) or sodium oxybate (GHB) because the risk of severe drowsiness or breathing problems may be increased

  • Naltrexone because it may decrease Entuss Liquid's effectiveness

This may not be a complete list of all interactions that may occur. Ask your health care provider if Entuss Liquid may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.


How to use Entuss Liquid:


Use Entuss Liquid as directed by your doctor. Check the label on the medicine for exact dosing instructions.


  • Take Entuss Liquid by mouth with or without food.

  • Drinking extra fluids while you are taking Entuss Liquid is recommended. Check with your doctor for instructions.

  • Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure your dose.

  • If you miss a dose of Entuss Liquid, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Entuss Liquid.



Important safety information:


  • Entuss Liquid may cause dizziness or drowsiness. These effects may be worse if you take it with alcohol or certain medicines. Use Entuss Liquid with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.

  • Do NOT take more than the recommended dose or use for longer than prescribed without checking with your doctor.

  • If your symptoms do not get better within 5 to 7 days or if they get worse, check with your doctor.

  • Tell your doctor or dentist that you take Entuss Liquid before you receive any medical or dental care, emergency care, or surgery.

  • Entuss Liquid may interfere with certain lab tests. Be sure your doctor and lab personnel know you are taking Entuss Liquid.

  • Use Entuss Liquid with caution in the ELDERLY; they may be more sensitive to its effects.

  • Entuss Liquid should be used with extreme caution in CHILDREN younger than 6 years old; safety and effectiveness in these children have not been confirmed.

  • PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Entuss Liquid while you are pregnant. It is not known if Entuss Liquid is found in breast milk. Do not breast-feed while taking Entuss Liquid.

When used for long periods of time or at high doses, Entuss Liquid may not work as well and may require higher doses to obtain the same effect as when originally taken. This is known as TOLERANCE. Talk with your doctor if Entuss Liquid stops working well. Do not take more than prescribed.


When used for longer than a few weeks or at high doses, some people develop a need to continue taking Entuss Liquid. This is known as DEPENDENCE or addiction.


If you suddenly stop taking Entuss Liquid, you may experience WITHDRAWAL symptoms including anxiety; diarrhea; fever, runny nose, or sneezing; goose bumps and abnormal skin sensations; nausea; vomiting; pain; rigid muscles; rapid heartbeat; seeing, hearing or feeling things that are not there; shivering or tremors; sweating; and trouble sleeping.



Possible side effects of Entuss Liquid:


All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:



Constipation; dizziness; drowsiness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.



Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); anxiety; change in amount of urine; difficulty urinating; hearing change or loss; mental or mood changes; severe drowsiness.



This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.



If OVERDOSE is suspected:


Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include blurred vision; confusion; hallucinations; seizures; severe dizziness, lightheadedness, or headache; severe drowsiness; unusually fast, slow, or irregular heartbeat; vomiting.


Proper storage of Entuss Liquid:

Store Entuss Liquid at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep Entuss Liquid out of the reach of children and away from pets.


General information:


  • If you have any questions about Entuss Liquid, please talk with your doctor, pharmacist, or other health care provider.

  • Entuss Liquid is to be used only by the patient for whom it is prescribed. Do not share it with other people.

  • If your symptoms do not improve or if they become worse, check with your doctor.

  • Check with your pharmacist about how to dispose of unused medicine.

This information is a summary only. It does not contain all information about Entuss Liquid. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.



Issue Date: February 1, 2012

Database Edition 12.1.1.002

Copyright © 2012 Wolters Kluwer Health, Inc.

More Entuss resources


  • Entuss Use in Pregnancy & Breastfeeding
  • Entuss Drug Interactions
  • Entuss Support Group
  • 0 Reviews · Be the first to review/rate this drug

Friday 25 May 2012

Vfend Tablets


Pronunciation: VOR-i-KON-a-zole
Generic Name: Voriconazole
Brand Name: Vfend


Vfend is used for:

Treating certain fungal infections.


Vfend is an azole antifungal. It works by blocking fungal cell wall growth, resulting in the death of the fungus.


Do NOT use Vfend if:


  • you are allergic to any ingredient in Vfend

  • you have galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption

  • you have untreated low blood calcium, magnesium, or potassium levels

  • you are taking astemizole, a barbiturate (eg, phenobarbital), cabazitaxel, carbamazepine, cisapride, crizotinib, dronedarone, an ergot alkaloid (eg, ergotamine), erythromycin, everolimus, fluconazole, lurasidone, pimozide, quinidine, rifabutin, rifampin, rivaroxaban, sirolimus, St. John's wort, terfenadine, or ticagrelor

Contact your doctor or health care provider right away if any of these apply to you.



Before using Vfend:


Some medical conditions may interact with Vfend. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:


  • if you are pregnant, planning to become pregnant, or are breast-feeding

  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement

  • if you have allergies to medicines, foods, or other substances

  • if you are allergic to other azole antifungals (eg, fluconazole, itraconazole)

  • if you have a history of heart problems (eg, cardiomyopathy, irregular heartbeat); an abnormal electrocardiogram (ECG) (a type of heart test); or low blood calcium, magnesium, or potassium levels

  • if you have liver problems (eg, cirrhosis), kidney problems, pancreas problems, a weakened immune system, or a blood disease (eg, blood or bone marrow cancer)

  • if you have trouble digesting dairy products or lactose

  • if you have ever been on chemotherapy or have had a stem cell transplant

  • if you have taken fluconazole within the last 24 hours

  • if you are taking ritonavir. Vfend should not be taken with certain doses of ritonavir

Some MEDICINES MAY INTERACT with Vfend. Tell your health care provider if you are taking any other medicines, especially any of the following:


  • Medicines that may harm the kidney because the risk of kidney side effects may be increased. Ask your doctor or pharmacist if you are unsure if any of your medicines might affect the kidney

  • Medicines that may increase the risk of a certain type of irregular heartbeat (prolonged QT interval). Check with your doctor or pharmacist if you are unsure if any of your medicines may increase the risk of this type of irregular heartbeat

  • Many other prescription and nonprescription medicines (eg, used for aches and pains, anxiety, birth control, blood flow problems, blood thinning, cancer, diabetes, drug dependence, heartburn or reflux, high blood pressure, high cholesterol, HIV, immune system suppression, infections, irregular heartbeat or other heart problems, mental or mood problems, pain, seizures, stomach or bowel problems), multivitamin products, or herbal or dietary supplements (eg, herbal teas, coenzyme Q10, garlic, ginseng, ginkgo, St. John's wort) may interact with Vfend. Ask your doctor or pharmacist if you are unsure if any of your medicines might interact with Vfend

This may not be a complete list of all interactions that may occur. Ask your health care provider if Vfend may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.


How to use Vfend:


Use Vfend as directed by your doctor. Check the label on the medicine for exact dosing instructions.


  • An extra patient leaflet is available with Vfend. Talk to your pharmacist if you have questions about this information.

  • Take Vfend by mouth on an empty stomach at least 1 hour before or 1 hour after eating.

  • To clear up your infection completely, take Vfend for the full course of treatment. Keep taking it even if you feel better in a few days.

  • If you miss a dose of Vfend, take it as soon as possible. If it is more than 6 hours after the missed dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Vfend.



Important safety information:


  • Vfend may cause blurred vision or sensitivity to light. These effects may be worse if you take it with alcohol or certain medicines. Use Vfend with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.

  • Avoid driving at night while you are using Vfend.

  • Vfend may cause you to become sunburned more easily. Avoid the sun, sunlamps, or tanning booths until you know how you react to Vfend. Use a sunscreen or wear protective clothing if you must be outside for more than a short time.

  • Certain types of skin cancers (eg, melanoma, squamous cell) have been reported in patients who became sensitive to sunlight while taking Vfend for a long period of time. Contact your doctor if you notice a change in the appearance of a mole or other unusual skin change or growth. Discuss any questions or concerns with your doctor.

  • Vfend may make your eyes more sensitive to sunlight. It may help to wear sunglasses. Avoid strong, direct sunlight.

  • Tell your doctor or dentist that you take Vfend before you receive any medical or dental care, emergency care, or surgery.

  • If your symptoms do not improve within a few days or if they become worse, check with your doctor.

  • Women who may become pregnant should use effective birth control (eg, birth control pills) while taking Vfend. Talk with your doctor if you have questions about effective birth control.

  • Lab tests, including eye exams, liver and kidney function, and pancreas function, may be performed while you use Vfend. These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.

  • Vfend should be used with extreme caution in CHILDREN younger than 12 years old; safety and effectiveness in these children have not been confirmed.

  • PREGNANCY and BREAST-FEEDING: Vfend may cause harm to the fetus. Do not become pregnant while you are using it. If you think you may be pregnant, contact your doctor. You will need to discuss the benefits and risks of using Vfend while you are pregnant. It is not known if Vfend is found in breast milk. Do not breast-feed while taking Vfend.


Possible side effects of Vfend:


All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:



Blurred vision; headache; nausea; sensitivity to light; sensitivity to the sun; vomiting.



Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; itching; difficulty breathing or swallowing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); abnormal thoughts; black, tarry stools; bone pain; calf or leg pain, redness, swelling, or tenderness; change in the appearance of a mole; chest, jaw, or arm pain; confusion; decreased urination; fainting; fast, slow, or irregular heartbeat; fever, chills, or persistent sore throat; flushing; hallucinations; mental or mood changes (eg, depression); mouth sores; one-sided weakness; red, swollen, peeling, or blistered skin; seizures; severe or persistent dizziness or headache; shortness of breath; speech changes; sudden, severe nausea or vomiting; suicidal thoughts or actions; swelling of the arms or legs; symptoms of liver problems (eg, yellowing of the skin or eyes; dark urine; pale stools; severe or persistent nausea, vomiting, or stomach pain; loss of appetite; itching); symptoms of pancreatitis (eg, severe stomach or back pain, with or without nausea or vomiting); unusual bruising or bleeding; unusual skin change or skin growth; unusual sweating or weakness; unusual tiredness; unusual vaginal bleeding; vision changes (eg, color vision change, persistent or severe blurred vision or sensitivity to light).



This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.


See also: Vfend side effects (in more detail)


If OVERDOSE is suspected:


Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately.


Proper storage of Vfend:

Store Vfend at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep Vfend out of the reach of children and away from pets.


General information:


  • If you have any questions about Vfend, please talk with your doctor, pharmacist, or other health care provider.

  • Vfend is to be used only by the patient for whom it is prescribed. Do not share it with other people.

  • If your symptoms do not improve or if they become worse, check with your doctor.

  • Check with your pharmacist about how to dispose of unused medicine.

This information is a summary only. It does not contain all information about Vfend. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.



Issue Date: February 1, 2012

Database Edition 12.1.1.002

Copyright © 2012 Wolters Kluwer Health, Inc.

More Vfend resources


  • Vfend Side Effects (in more detail)
  • Vfend Dosage
  • Vfend Use in Pregnancy & Breastfeeding
  • Drug Images
  • Vfend Drug Interactions
  • Vfend Support Group
  • 1 Review for Vfend - Add your own review/rating


Compare Vfend with other medications


  • Aspergillosis, Invasive
  • Blastomycosis
  • Candida Infections, Systemic
  • Coccidioidomycosis, Meningitis
  • Cutaneous Fungal Infection
  • Esophageal Candidiasis
  • Eumycetoma
  • Fungal Infection, Internal and Disseminated
  • Fungal Meningitis
  • Fungal Pneumonia
  • Fusariosis
  • Ocular Fungal Infection
  • Pseudoallescheriosis
  • Systemic Fungal Infection

Monday 21 May 2012

Gemcitabine 38mg / ml powder for solution for infusion





1. Name Of The Medicinal Product



Gemcitabine 38mg/ml powder for solution for infusion


2. Qualitative And Quantitative Composition



One ml of the reconstituted solution for infusion (see section 6.6) contains 38mg gemcitabine (as hydrochloride).



200 mg vial:



Each vial contains 200mg of gemcitabine (as hydrochloride).



Contains approximately 0.15mmol (3.56mg) sodium per 200mg vial.



1 g vial:



Each vial contains 1g of gemcitabine (as hydrochloride).



Contains approximately 0.77mmol (17.81mg) sodium per 1g vial.



2 g vial:



Each vial contains 2g of gemcitabine (as hydrochloride).



Contains approximately 1.54mmol (35.62mg) sodium per 2g vial.



For a full list of excipients, see section 6.1.



3. Pharmaceutical Form



Powder for solution for infusion.



White or almost white compact aggregate. After reconstitution in sodium chloride 0.9% the solution is clear to pale opalescent and colourless to pale yellow.



The pH of the reconstituted solution in sodium chloride 0.9% solution is 3.0 ± 0.3.



The osmolarity of the reconstituted solution (38mg/ml of gemcitabine (as hydrochloride) in sodium chloride 0.9% solution) is 775 mOsm/l.



4. Clinical Particulars



4.1 Therapeutic Indications



Gemcitabine is indicated for the treatment of locally advanced or metastatic bladder cancer in combination with cisplatin.



Gemcitabine is indicated for treatment of patients with locally advanced or metastatic adenocarcinoma of the pancreas.



Gemcitabine, in combination with cisplatin is indicated as first line treatment of patients with locally advanced or metastatic non-small cell lung cancer (NSCLC). Gemcitabine monotherapy can be considered in elderly patients or those with performance status 2.



Gemcitabine is indicated for the treatment of patients with locally advanced or metastatic epithelial ovarian carcinoma, in combination with carboplatin, in patients with relapsed disease following a recurrence-free interval of at least 6 months after platinum-based, first-line therapy.



Gemcitabine, in combination with paclitaxel, is indicated for the treatment of patients with unresectable, locally recurrent or metastatic breast cancer who have relapsed following adjuvant/neoadjuvant chemotherapy. Prior chemotherapy should have included an anthracycline unless clinically contraindicated.



4.2 Posology And Method Of Administration



Gemcitabine should only be prescribed by a physician qualified in the use of anti-cancer chemotherapy.



Recommended posology



Bladder cancer



Combination use



The recommended dose for gemcitabine is 1000mg/m2, given by 302 on Day 1 following gemcitabine or day 2 of each 28



Pancreatic cancer



The recommended dose of gemcitabine is 1000mg/m2, given by 30



Non small cell lung cancer



Monotherapy



The recommended dose of gemcitabine is 1000mg/m2, given by 30



Combination use



The recommended dose for gemcitabine is 1250mg/m2 body surface area given as a 30



Cisplatin has been used at doses between 75-100mg/m2 once every 3 weeks.



Breast cancer



Combination use



Gemcitabine in combination with paclitaxel is recommended using paclitaxel (175mg/m2) administered on Day 1 over approximately 32) as a 306/l) prior to initiation of gemcitabine + paclitaxel combination.



Ovarian cancer



Combination use



Gemcitabine in combination with carboplatin is recommended using gemcitabine 1000mg/m2 administered on Days 1 and 8 of each 21



Monitoring for toxicity and dose modification due to toxicity



Dose modification due to non haematological toxicity



Periodic physical examination and checks of renal and hepatic function should be made to detect non-haematological toxicity. Dosage reduction with each cycle or within a cycle may be applied based upon the grade of toxicity experienced by the patient. In general, for severe (Grade 3 or 4) non-haematological toxicity, except nausea/vomiting, therapy with gemcitabine should be withheld or decreased depending on the judgement of the treating physician. Doses should be withheld until toxicity has resolved in the opinion of the physician.



For cisplatin, carboplatin, and paclitaxel dosage adjustment in combination therapy, please refer to the corresponding Summary of Product Characteristics.



Dose modification due to haematological toxicity



Initiation of a cycle



For all indications, the patient must be monitored before each dose for platelet and granulocyte counts. Patients should have an absolute granulocyte count of at least 1,500 (x 106/l) and platelet account of 100,000 (x 106/l) prior to the initiation of a cycle.



Within a cycle



Dose modifications of gemcitabine within a cycle should be performed according to the following tables:



















Dose modification of gemcitabine within a cycle for bladder cancer, NSCLC and pancreatic cancer, given in monotherapy or in combination with cisplatin


  


Absolute granulocyte count



(x 106/l)




Platelet count



(x 106/l)




Percentage of standard dose of gemcitabine (%)




> 1,000                                                and




> 100,000




100




500-1,000                                            or




50,000-100,000




75




<500                                                    or




< 50,000




Omit dose *



*Treatment omitted will not be re-instated within a cycle before the absolute granulocyte count reaches at least 500 (x106/l) and the platelet count reaches 50,000 (x106/l).






















Dose modification of gemcitabine within a cycle for breast cancer, given in combination with paclitaxel


  


Absolute granulocyte count



(x 106/l)




Platelet count



(x 106/l)




Percentage of standard dose of gemcitabine (%)







>75,000




100




1,000- <1,200                                      or




50,000-75,000




75




700- <1,000                                         and







50




<700                                                   or




<50,000




Omit dose*



*Treatment omitted will not be re-instated within a cycle. Treatment will start on day 1 of the next cycle once the absolute granulocyte count reaches at least 1,500 (x106/l) and the platelet count reaches 100,000 (x106/l).



















Dose modification of gemcitabine within a cycle for ovarian cancer, given in combination with carboplatin


  


Absolute granulocyte count



(x 106/l)




Platelet count



(x 106/l)




Percentage of standard dose of gemcitabine (%)




> 1,500                                                and







100




1000-1,500                                          or




75,000-100,000




50




<1000                                                  or




< 75,000




Omit dose*



*Treatment omitted will not be re-instated within a cycle. Treatment will start on day 1 of the next cycle once the absolute granulocyte count reaches at least 1,500 (x106/l) and the platelet count reaches 100,000 (x106/l).



Dose modifications due to haematological toxicity in subsequent cycles, for all indications



The gemcitabine dose should be reduced to 75% of the original cycle initiation dose, in the case of the following haematological toxicities:



• Absolute granulocyte count < 500 x 106/l for more than 5 days



• Absolute granulocyte count < 100 x 106/l for more than 3 days



• Febrile neutropaenia



• Platelets < 25,000 x 106/l



• Cycle delay of more than 1 week due to toxicity



Method of administration



The medicinal product is tolerated well during infusion and may be administered ambulant. If extravasation occurs, generally the infusion must be stopped immediately and started again in another blood vessel. The patient should be monitored carefully after the administration.



For instructions on reconstitution, see section 6.6



Special populations



Patients with renal or hepatic impairment



Gemcitabine should be used with caution in patients with hepatic or renal insufficiency as there is insufficient information from clinical studies to allow for clear dose recommendations for these patient populations (see sections 4.4 and 5.2).



Elderly population(> 65 years)



Gemcitabine has been well tolerated in patients over the age of 65. There is no evidence to suggest that dose adjustments, other than those already recommended for all patients, are necessary in the elderly (see section 5.2).



Paediatric population (< 18 years)



Gemcitabine is not recommended for use in children under 18 years of age due to insufficient data on safety and efficacy.



4.3 Contraindications



Hypersensitivity to the active substance or to any of the excipients.



Breast-feeding (see section 4.6).



4.4 Special Warnings And Precautions For Use



Prolongation of the infusion time and increased dosing frequency have been shown to increase toxicity.



Haematological toxicity



Gemcitabine can suppress bone marrow function as manifested by leucopaenia, thrombocytopaenia and anaemia.



Patients receiving gemcitabine should be monitored prior to each dose for platelet, leucocyte and granulocyte counts. Suspension or modification of therapy should be considered when drug-induced bone marrow depression is detected (see section 4.2). However, myelosuppression is short lived and usually does not result in dose reduction and rarely in discontinuation.



Peripheral blood counts may continue to deteriorate after gemcitabine administration has been stopped. In patients with impaired bone marrow function, the treatment should be started with caution. As with other cytotoxic treatments, the risk of cumulative bone-marrow suppression must be considered when gemcitabine treatment is given together with other chemotherapy.



Hepatic insufficiency



Administration of gemcitabine in patients with concurrent liver metastases or a pre-existing medical history of hepatitis, alcoholism or liver cirrhosis may lead to exacerbation of the underlying hepatic insufficiency.



Laboratory evaluation of renal and hepatic function (including virological tests) should be performed periodically.



Gemcitabine should be used with caution in patients with hepatic insufficiency or with impaired renal function as there is insufficient information from clinical studies to allow clear dose recommendation for this patient population (see section 4.2).



Concomitant radiotherapy



Concomitant radiotherapy (given together or



Live vaccinations



Yellow fever vaccine and other live attenuated vaccines are not recommended in patients treated with gemcitabine (see section 4.5).



Cardiovascular



Due to the risk of cardiac and/or vascular disorders with gemcitabine, particular caution must be exercised with patients presenting a history of cardiovascular events.



Pulmonary



Pulmonary effects, sometimes severe (such as pulmonary oedema, interstitial pneumonitis or adult respiratory distress syndrome (ARDS)) have been reported in association with gemcitabine therapy. The aetiology of these effects is unknown. If such effects develop, consideration should be made to discontinuing gemcitabine therapy. Early use of supportive care measure may help ameliorate the condition.



Renal



Clinical findings consistent with the haemolytic uraemic syndrome (HUS) were rarely reported in patients receiving gemcitabine (see section 4.8). Gemcitabine should be discontinued at the first signs of any evidence of microangiopathic haemolytic anaemia, such as rapidly falling haemoglobin with concomitant thrombocytopaenia, elevation of serum bilirubin, serum creatinine, blood urea nitrogen, or LDH. Renal failure may not be reversible with discontinuation of therapy and dialysis may be required.



Fertility



In fertility studies gemcitabine caused hypospermatogenesis in male mice (see section 5.3). Therefore, men being treated with gemcitabine are advised not to father a child during and up to 6 months after treatment and to seek further advice regarding cryoconservation of sperm prior to treatment because of the possibility of infertility due to therapy with gemcitabine (see section 4.6).



Sodium



Vial of 200mg gemcitabine contains 3.56mg (<1mmol) sodium.



Vial of 1g gemcitabine contains 17.81mg (< 1mmol) sodium.



Vial of 2g gemcitabine contains 35.62mg (1.54mmol) sodium.



This should be taken into consideration by patients on a controlled sodium diet.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



No specific interaction studies have been performed (see section 5.2)



Radiotherapy



Concurrent (given together or 2 was administered concurrently for up to 6 consecutive weeks with therapeutic thoracic radiation to patients with non-small cell lung cancer, significant toxicity in the form of severe, and potentially life threatening mucositis, especially oesophagitis, and pneumonitis was observed, particularly in patients receiving large volumes of radiotherapy [median treatment volumes 4,795 cm3]. Studies done subsequently have suggested that it is feasible to administer gemcitabine at lower doses with concurrent radiotherapy with predictable toxicity, such as a phase II study in non-small cell lung cancer, where thoracic radiation doses of 66 Gy were applied concomitantly with an administration with gemcitabine (600mg/m2, four times) and cisplatin (80mg/m2 twice) during 6 weeks. The optimum regimen for safe administration of gemcitabine with therapeutic doses of radiation has not yet been determined in all tumour types.



Non-concurrent (given>7 days apart)- Analysis of the data does not indicate any enhanced toxicity when gemcitabine is administered more than 7 days before or after radiation, other than radiation recall. Data suggest that gemcitabine can be started after the acute effects of radiation have resolved or at least one week after radiation.



Radiation injury has been reported on targeted tissues (e.g. oesophagitis, colitis, and pneumonitis) in association with both concurrent and non-concurrent use of gemcitabine.



Others



Yellow fever and other live attenuated vaccines are not recommended due to the risk of systemic, possibly fatal, disease, particularly in immunosuppressed patients.



4.6 Pregnancy And Lactation



Pregnancy



There are no adequate data from the use of gemcitabine in pregnant women. Studies in animals have shown reproductive toxicity (see section 5.3). Based on results from animal studies and the mechanism of action of gemcitabine, this substance should not be used during pregnancy unless clearly necessary. Women should be advised not to become pregnant during treatment with gemcitabine and to warn their attending physician immediately, should this occur after all.



Breast-feeding



It is not known whether gemcitabine is excreted in human milk and adverse effects on the suckling child cannot be excluded. Breast-feeding must be discontinued during gemcitabine therapy.



Fertility



In fertility studies gemcitabine caused hypospermatogenesis in male mice (see section 5.3). Therefore, men being treated with gemcitabine are advised not to father a child during and up to 6 months after treatment and to seek further advice regarding cryoconservation of sperm prior to treatment because of the possibility of infertility due to therapy with gemcitabine.



4.7 Effects On Ability To Drive And Use Machines



No studies on the effects on the ability to drive and use machines have been performed. However, gemcitabine has been reported to cause mild to moderate somnolence, especially in combination with alcohol consumption. Patients should be cautioned against driving or operating machinery until it is established that they do not become somnolent.



4.8 Undesirable Effects



The most commonly reported adverse drug reactions associated with gemcitabine treatment include: nausea with or without vomiting, raised liver transaminases (AST/ALT) and alkaline phosphatase, reported in approximately 60% of patients; proteinuria and haematuria reported in approximately 50% patients; dyspnoea reported in 10



The frequency and severity of the adverse reactions are affected by the dose, infusion rate and intervals between doses (see section 4.4). Dose



Clinical trial data



Frequencies are defined as: Very common (



The following table of undesirable effects and frequencies is based on data from clinical trials. Within each frequency grouping, undesirable effects are presented in order of decreasing seriousness.


































System Organ Class




Frequency grouping




Blood and lymphatic system disorders




Very common



• Leucopaenia (Neutropaenia Grade 3 = 19.3 %; Grade 4 = 6 %).



Bone-marrow suppression is usually mild to moderate and mostly affects the granulocyte count (see section 4.2)



• Thrombocytopaenia



• Anaemia



Common



• Febrile neutropaenia



Very rare



• Thrombocytosis




Immune system disorders




Very Rare



• Anaphylactoid reaction




Metabolism and nutrition disorders




Common



• Anorexia




Nervous system disorders




Common



• Headache



• Insomnia



• Somnolence




Cardiac disorders




Rare



• Myocardial infarct




Vascular disorders




Rare



• Hypotension




Respiratory, thoracic and mediastinal disorders




Very common



• Dyspnoea –usually mild and passes rapidly without treatment



Common



• Cough



• Rhinitis



Uncommon



• Interstitial pneumonitis (see section 4.4)



• Bronchospasm –usually mild and transient but may require parenteral treatment




Gastrointestinal disorders




Very common



• Vomiting



• Nausea



Common



• Diarrhoea



• Stomatitis and ulceration of the mouth



• Constipation




Hepatobiliary disorders




Very common



• Elevation of liver transaminases (AST and ALT) and alkaline phosphatase



Common



• Increased bilirubin



Rare



• Increased gamma-glutamyl transferase (GGT)




Skin and subcutaneous tissue disorders




Very common



• Allergic skin rash frequently associated with pruritus



• Alopecia



Common



• Itching



•Sweating



Rare



• Ulceration



• Vesicle and sore formation



• Scaling



Very rare



• Severe skin reactions, including desquamation and bullous skin eruptions




Musculoskeletal and connective tissue disorders




Common



• Back pain



• Myalgia




Renal and urinary disorders




Very Common



• Haematuria



• Mild proteinuria




General disorders and administration site conditions




Very common



• Influenza-like symptoms - the most common symptoms are fever, headache, chills, myalgia, asthenia and anorexia. Cough, rhinitis, malaise, perspiration and sleeping difficulties have also been reported.



• Oedema/peripheral oedema-including facial oedema. Oedema is usually reversible after stopping treatment



Common



• Fever



• Asthenia



• Chills



Rare



• Injection site reactions-mainly mild in nature




Injury, poisoning, and procedural Complications




Radiation toxicity (see section 4.5).



Postmarketing experience (spontaneous reports) frequency not known (can't be estimated from the available data)



Nervous system disorders



Cerebrovascular accident



Cardiac disorders



Arrythmias, predominantly supraventricular in nature



Heart failure



Vascular disorders



Clinical signs of peripheral vasculitis and gangrene



Respiratory, thoracic and mediastinal disorders



Pulmonary oedema



Adult respiratory distress syndrome (see section 4.4)



Gastrointestinal disorders



Ischaemic colitis



Hepatobiliary disorders



Serious hepatotoxicity, including liver failure and death



Skin and subcutaneous tissue disorders



Severe skin reactions, including desquamation and bullous skin eruptions, Lyell's Syndrome, Steven-Johnson Syndrome



Renal and urinary disorders



Renal failure (see section 4.4)



Haemolytic uraemic syndrome (see section 4.4)



Injury, poisoning and procedural complications



Radiation recall



Combination use in breast cancer



The frequency of grade 3 and 4 haematological toxicities, particularly neutropaenia, increases when gemcitabine is used in combination with paclitaxel. However, the increase in these adverse reactions is not associated with an increased incidence of infections or haemorrhagic events. Fatigue and febrile neutropaenia occur more frequently when gemcitabine is used in combination with paclitaxel. Fatigue, which is not associated with anaemia, usually resolves after the first cycle.










































































Grade 3 and 4 Adverse Events



Paclitaxel versus gemcitabine plus paclitaxel


    

 


Number (%) of Patients


   


Paclitaxel arm



(N=259)




Gemcitabine plus Paclitaxel arm



(N=262)


   


Grade 3




Grade 4




Grade 3




Grade 4


 


Laboratory



 

 

 

 


Anaemia




5 (1.9)




1 (0.4)




15 (5.7)




3 (1.1)




Thrombocytopaenia




0




0




14 (5.3)




1 (0.4)




Neutropaenia




11 (4.2)




17 (6.6)*




82 (31.3)




45 (17.2)*




Non-laboratory



 

 

 

 


Febrile neutropaenia




3 (1.2)




0




12 (4.6)




1(0.4)




Fatigue




3 (1.2)




1 (0.4)




15 (5.7)




2 (0.8)




Diarrhoea




5 (1.9)




0




8 (3.1)




0




Motor neuropathy




2(0.8)




0




6(2.3)




1(0.4)




Sensory neuropathy




9(3.5)




0




14(5.3)




1(0.4)



*Grade 4 neutropaenia lasting for more than 7 days occurred in 12.6% of patients in the combination arm and 5.0% of patients in the paclitaxel arm.



Combination use in bladder cancer
































































Grade 3 and 4 Adverse Events



MVAC versus Gemcitabine plus cisplatin


    

 


Number (%) of Patients


   


MVAC (methotrexate, vinblastine, doxorubicin and cisplatin) arm



(N=196)




Gemcitabine plus cisplatin arm



(N=200)


   


Grade 3




Grade 4




Grade 3




Grade 4


 


Laboratory



 

 

 

 


Anaemia




30(16)




4(2)




47(24)




7(4)




Thrombocytopaenia




15(8)




25(13)




57(29)




57(29)




Non-laboratory



 

 

 

 


Nausea and vomiting




37(19)




3(2)




44(22)




0(0)




Diarrhoea




15(8)




1(1)




6(3)




0(0)




Infection




19(10)




10(5)




4(2)




1(1)




Stomatitis




34(18)




8(4)




2(1)




0(0)



Combination use in ovarian cancer

















































Grade 3 and 4 Adverse Events



Carboplatin versus Gemcitabine plus carboplatin


    

 


Number (%) of Patients


   


Carboplatin arm



(N=174)




Gemcitabine plus carboplatin arm



(N=175)


   


Grade 3




Grade 4




Grade 3




Grade 4


 


Laboratory



 

 

 

 


Anaemia




10(5.7)




4(2.3)




39(22.3)




9(5.1)




Neutropaenia




19(10.9)




2(1.1)




73(41.7)




50(28.6)




Thrombocytopaenia




18(10.3)




2(1.1)




53(30.3)




8(4.6)




Leucopaenia




11(6.3)




1(0.6)




84(48.0)




9(5.1)