Famvir
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Famvir is used to treat
herpes zoster (shingles) and genital herpes. It does not
cure herpes infections but decreases pain and itching,
helps sores to heal, and prevents new ones from forming.
Famvir is sometimes prescribed for other uses; ask your
doctor or pharmacist for more information.
Medication Information
Famvir is used to treat
herpes zoster (shingles) and genital herpes. It does not
cure herpes infections but decreases pain and itching,
helps sores to heal, and prevents new ones from forming.
Famvir is sometimes prescribed for other uses; ask
your doctor or pharmacist for more information.
How should this medicine be used?
Famvir comes
as a tablet to take by mouth. It is usually taken every
8 hours (three times a day) for 7 days to treat
shingles. To treat genital herpes it is usually taken
twice a day for 5 days. Follow the directions on your
prescription label carefully, and ask your doctor or
pharmacist to explain any part you do not understand.
Take Famvir exactly as directed. Do not take more or
less of it or take it more often than prescribed by your
doctor. Use Famvir as soon as possible after symptoms
appear.
Continue to take Famvir even if you feel well. Do not
stop taking Famvir without talking to your doctor.
What special precautions should I follow?
Before taking Famvir,
tell your doctor and pharmacist if you are allergic
to Famvir, acyclovir (Zovirax), or any other drugs. tell
your doctor and pharmacist what prescription and
nonprescription medications you are taking, especially
digoxin (Lanoxin), probenecid (Benemid), and vitamins.
tell your doctor if you have or have ever had kidney
or liver disease, problems with your immune system,
human immunodeficiency virus infection (HIV), or
acquired immunodeficiency syndrome (AIDS).
tell your
doctor if you are pregnant, plan to become pregnant, or
are breast-feeding. If you become pregnant while taking
Famvir, call your doctor.
What special dietary instructions should I
follow?
Famvir may cause an upset stomach. Take
Famvir with food or milk.
What should I do if I forget a dose?
Take the
missed dose as soon as you remember it, and take any
remaining doses for that day at evenly spaced intervals.
However, if it is almost time for the next dose, skip
the missed dose and continue your regular dosing
schedule. Do not take a double dose to make up for a
missed one.
What side effects can Famvir cause?
Although
side effects from Famvir are not common, they can occur.
Tell your doctor if any of these symptoms are severe or
do not go away:
headache
upset stomach
vomiting
diarrhea
or loose stools
If you experience any of the
following side effects, call your doctor
immediately:
rash
itching
What storage conditions are needed for this
medicine?
Keep Famvir in the container it came in,
tightly closed, and out of reach of children. Store it
at room temperature and away from excess heat and
moisture (not in the bathroom). Throw away any
medication that is outdated or no longer needed. Talk to
your pharmacist about the proper disposal of your
medication.
In case of emergency/overdose
In case of
overdose, call your local poison control center at
1-800-222-1222. If the victim has collapsed or is not
breathing, call local emergency services at 911.
What other information should I know?
Keep all
appointments with your doctor and the laboratory. Your
doctor will order certain lab tests to check your
response to Famvir.
Do not have sexual intercourse when you can see the
genital herpes lesions. However, genital herpes can be
spread even when there are no symptoms.
Do not let anyone else take your medication. Ask your
pharmacist any questions you have about refilling your
prescription. If you still have symptoms of infection
after you finish the Famvir, call your doctor. |
