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Table of Contents > Drug > Famciclovir Print

Famciclovir

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Notes
Related terms
Uses
Dosing
Safety
Author information

Notes

    Related terms
    • Brand Names: U.S.: Famvir®
    • Brand Names: Canada: Apo-Famciclovir®;Ava-Famciclovir;CO Famciclovir;Famvir®;PMS-Famciclovir;Sandoz-Famciclovir

    Uses
    • It is used to stop or treat herpes infections.
    • It is used to treat cold sores.
    • Famciclovir works to harm the virus and fight the infection.

    Dosing

    How to take

    • Use as you have been told, even if you are feeling better.
    • Take with or without food. Take with food if it causes an upset stomach.
    • Take with a full glass of water.
    • Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.
    • If you are taking this drug for an infection that came back, start this drug as soon as you can.
    • If you are taking this drug for shingles, start it as soon as you can; no later than 3 days after the rash shows up.

    Missed Dose

    • Take a missed dose as soon as you think about it.
    • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
    • Do not take 2 doses at the same time or extra doses.

    Storage

    • Store at room temperature.
    • Protect from water. Do not store in a bathroom or kitchen.

    Safety



    Avoid

    • If you have an allergy to famciclovir or any other part of this drug.
    • Tell your doctor if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.

    Precautions

    • If you have kidney disease, talk with your doctor.
    • If you are on a lactose-free diet, talk with your doctor.
    • Check all drugs you are taking with your doctor. This drug may not mix well with some other drugs.
    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Tell your doctor if you are pregnant or plan on getting pregnant.
    • Tell your doctor if you are breast-feeding.

    Side Effects

    • Headache.
    • Upset stomach or throwing up. Many small meals, good mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.
    • Loose stools (diarrhea).
    • Feeling tired or weak.
    • Belly pain.

    Contact a healthcare provider

    • If you think there was an overdose, call your local poison control center or ER right away.
    • Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue or gray skin color; seizures; or swelling of face, lips, tongue, or throat.
    • Very upset stomach or throwing up.
    • Any rash.
    • Side effect or health problem is not better or you are feeling worse.

    General Statements

    • If you have a very bad allergy, wear an allergy ID at all times.
    • Do not share your drugs with others and do not take anyone else's drugs.
    • Keep all drugs out of the reach of children and pets.
    • Most drugs may be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada, take any unused drugs to the pharmacy. Also, visit http://www.hc-sc.gc.ca/hl-vs/iyh-vsv/med/disposal-defaire-eng.php#th to learn about the right way to get rid of unused drugs.
    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Call your doctor for help with any side effects. If in the U.S., you may also call the FDA at 1-800-FDA-1088 or if in Canada, you may also call Health Canada's Vigilance Program at 1-866-234-2345.
    • Talk with the doctor before starting any new drug, including OTC, natural products, or vitamins.

    Author information
    • Copyright © 1978-2013 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (www.naturalstandard.com)


    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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