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Famvir Coupon & Discounts

Save on Famvir at your pharmacy with the free discount below.

Famvir is an antiviral drug, prescribed to treat different manifestations of the herpes virus. It is dispensed in tablet form in dosage strengths of 125, 250, and 500mg with the Famvir price for a 21-tablet supply starting at $10 for the 125mg dose and climbing to as high as $265 for the 500mg strength. To help ... Read more

Famvir Discount

Savings with HelpRx discount up to:

75% Off

on Famvir

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*The discount percent is an estimate based off recent cardholder data. Valid as of May 25, 2018

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Famvir Information:

What is Famvir?

Famvir is the drug famciclovir, an antiviral medication that is prescribed to treat a number of conditions in those with a normal immune system including herpes zoster, cold sores, fever blisters, and genital herpes. It is also used to treat infections of herpes simplex in those infected with HIV. Famvir works by stopping the herpes virus from spreading in the body. It also helps decrease its pain, itching, burning, and tenderness as well as helping sores to heal and preventing new ones from forming. 

How do I take Famvir?

Famvir medicine is administered as a tablet that is taken orally with water and without regard for food, and is taken as soon as possible following the appearance of symptoms. The strength, frequency, and duration of the dosage depends on the condition being treated and the medical profile of the patient. Follow the instructions that accompany the prescription exactly; do not take more or less of this medication than called for in the prescription.

Before taking Famvir, tell your doctor if:

  • You are allergic to famciclovir, acyclovir, penciclovir, lactose, or any of the ingredients in the Famvir medicine
  • You are pregnant, planning a pregnancy, or are nursing a child
  • You are taking any prescription or non-prescription medications, vitamins, or supplements
  • You are taking, or plan to take, probenecid
  • You have, or have had, problems with your immune system including HIV/AIDS
  • You have a glucose-galactose malabsorption condition or have galactose intolerance
  • You have, or have had, kidney or liver disease

What are the possible side effects of taking Famvir?

Some people have reported side effects after taking the Famvir drug. Less severe symptoms include diarrhea, loose stools, gas, headache, nausea, painful menstrual periods, stomach pain, fatigue, and vomiting. If any of these conditions persist or worsen, contact your healthcare provider. Severe side effects requiring immediate medical attention include signs of an allergic reaction (rash, hives, itching, peeling or blistered skin; swelling of the face, mouth, lips, throat, or tongue; fever; hoarseness; difficulty breathing or swallowing), or pain, burning, tingling, or numbing of the feet or hands.

What if I forget to take a dose of Famvir?

If you forget to take your scheduled Famvir dose, do so as soon as your remember and are able, then take any remaining doses for that day at evenly spaced intervals. However, if it is almost time for the next scheduled dose, skip the one missed and resume the regular schedule. Do not take more than the prescribed number or alter the dosing regimen to make up for one that was missed.

How do I store Famvir?

Keep Famvir tightly sealed in its original container, out of the reach of children and away from extremes of temperature and humidity. Dispose of any unused tablets according to the instructions of your pharmacist.

What happens if I overdose on Famvir?

If an overdose of Famvir is suspected, contact the Poison Control Center at 1-800-222-1222. If the individual has stopped breathing or lost consciousness, contact Emergency Services at 911.


Famvir may cause dizziness, drowsiness, or disorientation; do not drive, operate heavy machinery or equipment, use power tools, or handle firearms until its effects are known. Contact your doctor if you become pregnant while taking this medication. Famvir does not cure herpes nor stop its spread.


Brand Names

Famvir is the brand name of the anti-viral medication famciclovir; it is not available under any other brand. A Famvir coupon is offered by HelpRx that delivers savings of up to 75% for this medication. In addition, a discount card is available that provides the same Famvir cost reductions of as much as 75% and also reduces the price of hundreds of other drugs, both generic and brand name. Click the “Free Card” button at the top of any page on the HelpRx website to request yours today.

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Famvir Information:

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About Our Savings: is a discount pharmacy service, partnered with a leading pharmacy benefit manager. We negotiate lower prices on prescription medications, that we pass on to our members for free. There is no cost to use our cards and coupon, and anyone can take advantage of our discounts, regardless of healthcare coverage.

Our savings assurance of “up to 75% off” comes from historical data from actual claims. This data includes savings for both brand name and generic medications.