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Generic Famvir is a synthetic acyclic guanine derivative. The active ingredient present in this medicine is famciclovir that is chemically represented as 2-[2-(2-amino-9H-purin-9-yl)ethyl]-1,3-propanediol diacetate. The molecular formula is C14H19N5O4 and 321.3 is the molecular weight. It is white to pale yellow solid. This is freely soluble in acetone and methanol and sparingly soluble in ethanol and isopropanol. The tablet of generic Famvir contains various inactive ingredients such as sodium starch glycolate, titanium dioxide, polyethylene glycols, magnesium stearate, lactose, hydroxy propyl cellulose and hydroxyl propyl methylcellulose.
Quantity Strength Unit Price Price Cart
30 Tablets Famvir 250mg $2.87 $85.99
90 Tablets Famvir 250mg $2.86 $256.99
30 Tablets Famvir 500mg $5.57 $166.99
90 Tablets Famvir 500mg $5.56 $499.99


Generic Famvir or Famciclovir is an antiviral drug. It is used to treat various infection of herpes virus such as herpes zoster (shingles). This medicine is available under different trade name and is manufactured at different locations by various pharmaceutical company such as TEVA pharmaceutical and MylanPharmaceutical. FDA approved the drug for use in the year 1994.

Generic Famvir or Famciclovir belong to the class of medicine known as nucleotide analogues. This medicine works by preventing the spread of herpes virus in the body by preventing the replication of viral DNA. This viral DNA is essential for virus to multiply.

The active form of Famciclovir is penciclovir that is active against viruses. This medicine does not stop the spread of herpes infection. Generic Famvir or Famciclovir is useful in relieving pain, burning sensation, itching and tingling. Beside this, it also works by healing and preventing the sores that are associated with herpes infection.

Other drug of the same class includes:

• Acyclovir (Zovirax)
• Valacyclovir (Valtrex)

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Additional Information

Generic FAMCICLOVIR-(fam sye kloe veer)
Strength Famvir - FAMCICLOVIR 250mg

Generic Famvir can be taken with food or without food. The dose of the medicine depends on the type of problem for which it is used. Such as:
1000 mg of generic Famvir should be given to the patient for treatment of recurrent genital herpes, every 12 hours for one day.

For patient suffering from recurrent cold sore, 1500 mg of generic Famvir should be given as a single dose.

For suppression of recurrent genital herpes, 250 mg of generic Famvir should be given to the patient twice in day.

In case of Shingles, 500 mg of generic Famvir is given every 8 hours for 7 days.

For person suffering from HIV-infection, 500 mg of generic Famvir should be given twice for 7 days.

Side Effects

The user of generic Famvir might suffer from side effects such as headache, fatigue, nausea, vomiting, rash, flatulence and diarrhoea.
Some patients might experience serious skin reaction, allergic reaction, jaundice, and abnormal tests of liver function takes place.
The white blood cells of the patient might get reduced leading to condition that is known as neutropenia or reduced platelets called as thrombocytopenia. The kidney of some patient might not function properly leading to many kidney related problem.

The user of generic Famvir might also suffer from mood changes, hallucination, confustion, dizziness, drowsiness.

Some patient might also suffer problem in the urination, yellowing of skin & eyes, etc.


Prior taking generic Famvir, the patient should tell to the doctor if they are allergic to this medicine or any other medicine.

In case, the patient has any medical history of kidney related problem, then they should tell to the doctor before taking this medicine.

This medicine might make the patient dizzy so they should not drive the vehicle or operate machine. The patient should also limit the intake of alcohol and alcoholic beverage.

Generic Famvir might contain lactose. Therefore, if the patient is having problem in galactose tolerance, lactase deficiency, glucose-galactose poor absorption, then they should limit the intake of lactose.

Generic Famvir does not provide protection against spread of genital herpes. Hence, proper precaution should be taken by the patient so as to avoid its spread.

The medicine might pass to the breast milk of the patient and harm the infant. Therefore, such patient should consult to the doctor prior taking the generic Famvir.

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