Information about Famciclovir

Famciclovir Uses

How Famciclovir works

Famciclovir is an antiviral medication. It prevents the multiplication of virus in human cells. This stops the virus from producing new viruses and clears up your infection.

Common side effects of Famciclovir

Headache, Dizziness, Nausea, Rash, Abdominal pain, Itching, Abnormal liver function tests, Increased lipase in the blood, Elevated levels of serum amylase
Written By
PhD (Pharmacology), PGDPRA
Reviewed By
MD Pharmacology, MBBS
Last updated
24 Apr 2023 | 11:38 AM (UTC)

We provide you with authentic, trustworthy and revelant information

Want to know more

Available Medicine for Famciclovir

PenvirHetero Drugs Ltd
289 to ₹3172 variant(s)
VirovirFDC Ltd
309 to ₹3192 variant(s)
MicrovirMicro Labs Ltd
163 to ₹3522 variant(s)
FamcimacMacleods Pharmaceuticals Pvt Ltd
3122 variant(s)
FamnovaSignova Pharma Pvt Ltd
244 to ₹4822 variant(s)
FamtrexCipla Ltd
287 to ₹4312 variant(s)
Herpinil-FConnote Healthcare
550 to ₹6902 variant(s)
FamirCanbro Healthcare
380 to ₹6802 variant(s)
FamciclovirGlobela Pharma Pvt Ltd
2631 variant(s)
SimavirHenry Pharmaceuticals
2351 variant(s)

Frequently asked questions for Famciclovir


Q. Does Famciclovir prevent transmission of infection to others?

No, you can infect other people, even while you are being treated with Famciclovir. Herpes infections are contagious, so avoid letting infected areas come into contact with other people. Avoid touching your eyes after touching an infected area. Wash your hands frequently to prevent transmitting the infection to others. You should practice safe sex by using condoms. You should not have sex if you have genital sores or blisters.

Q. Is Famciclovir effective?

Famciclovir is effective if used in the dose and duration advised by your doctor. Do not stop taking it even if you see improvement in your condition. If you stop using Famciclovir too early, the symptoms may return or worsen.

Q. Can I stop taking Famciclovir when I feel better?

No, do not stop taking Famciclovir without consulting your doctor even if you are feeling better. Your symptoms may improve before the infection is completely cured. Therefore, for better and complete treatment, it is advised to continue your treatment for the prescribed duration.

Q. What should I tell my doctor before starting treatment with Famciclovir?

Before starting treatment with Famciclovir, tell your doctor if you have any other health problems, like kidney or liver-related issues. This is because certain medical conditions may affect your treatment and you may even need dose modifications. Let your doctor know about all the other medicines you are taking because they may affect, or be affected by, this medicine. Inform your doctor if you are planning a baby, if you are pregnant or breastfeeding.

Q. What are the serious side effects of Famciclovir?

Serious side effects are rare, but if you experience them, you should seek medical advice right away. These rare side effects include hives, blistering or peeling rash, yellow skin or eyes, unusual bruising or bleeding, loss of consciousness, fits, difficulty in breathing, hallucinations and swelling of the face, tongue, lips or throat.

Q. Do elderly patients need to be more careful while taking Famciclovir?

Older adults (over age 65 years) tend to experience more side effects when taking Famciclovir. The reason being, their kidneys do not flush the drug out of their system as quickly as a younger person’s kidneys would do. Elderly patients should drink plenty of water while taking Famciclovir, and their kidney function should be monitored. These patients should be given a lower dose and should be monitored for neurological problems.

Q. What if I forget to take a dose of Famciclovir?

If you forget a dose of Famciclovir, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take the next scheduled dose in the prescribed time. Do not double the dose to make up for the missed one as this may increase the chances of developing side effects.

Q. What can happen if somebody takes more than the recommended dose of Famciclovir accidentally?

Accidental, repeated overdoses of oral Famciclovir over several days have resulted in nausea, vomiting, confusion and headache. Consult your doctor in case of overdose.

Q. Can I get resistant to Famciclovir treatment?

Patients with advanced HIV disease or patients with an impaired immunity have reported resistance to Famciclovir. If you are not responding to Famciclovir, the possibility of drug resistance should be checked.


Orders Delivered
Get the link to download App

All products displayed on Tata 1mg are procured from verified and licensed pharmacies. All labs listed on the platform are accredited


Tata 1mg uses Secure Sockets Layer (SSL) 128-bit encryption and is Payment Card Industry Data Security Standard (PCI DSS) compliant


Find affordable medicine substitutes, save up to 50% on health products, up to 80% off on lab tests and free doctor consultations.

LegitScript approved
India's only LegitScript and ISO/ IEC 27001 certified online healthcare platform

Know more about Tata 1mgdownArrow

Access medical and health information

Tata 1mg provides you with medical information which is curated, written and verified by experts, accurate and trustworthy. Our experts create high-quality content about medicines, diseases, lab investigations, Over-The-Counter (OTC) health products, Ayurvedic herbs/ingredients, and alternative remedies.

Order medicines online

Get free medicine home delivery in over 1800 cities across India. You can also order Ayurvedic, Homeopathic and other Over-The-Counter (OTC) health products. Your safety is our top priority. All products displayed on Tata 1mg are procured from verified and licensed pharmacies.

Book lab tests

Book any lab tests and preventive health packages from certified labs and get tested from the comfort of your home. Enjoy free home sample collection, view reports online and consult a doctor online for free.

Consult a doctor online

Got a health query? Consult doctors online from the comfort of your home for free. Chat privately with our registered medical specialists to connect directly with verified doctors. Your privacy is guaranteed.