Famvir – Famciclovir

Famvir contains famciclovir, which is an antiviral drug. It prevents the spread of herpes by slowing down the growth of the virus, allowing the body to effectively fight off infection. Although Famvir can’t cure herpes on its own, it can lessen the symptoms of the disease. It will not prevent herpes from developing in the future. Famvir can be used for reasons and infections other than herpes too, if advised by your doctor.

Uses of Famvir

Famvir is an antiviral drug and is used to manage various viral infections. It’s used in the treatment of:


How to use Famvir

Don’t use the medicine without doctor’s advice. Always read the instructions manual that comes along the medicine before using it. Common instructions to use this medicine usually include:

Your symptoms might get better before the prescribed duration of use advised by your doctor. Don’t stop using the medicine just because the symptoms disappeared; complete the course to prevent the symptoms from appearing again and to avoid any other complication.

Side effects of Famvir

Famvir has some side effects like various other drugs that affect few people, including:

If you experience any of these side effects, consult your doctor as soon as possible without any delay to avoid any serious complication. Rarely, there can be a life threatening allergic reaction to this drug, with symptoms such as:

If any of these symptoms of allergic reactions occur, rush immediately to the emergency department of your nearest hospital to avoid any life-threatening situation. This is not a complete list of side effects of Famvir. Discuss with your doctor regarding possible risks in your specific case.


Drug interactions

Drug interactions can result in reducing the efficiency of the drug or increased risk of the potential side effects. Drugs that usually interact with Famvir include:

There can be various other drugs too that interact with Famvir. Tell your doctor regarding all the drugs and medicine you’re using to avoid any interactions. Also, if you plan to start any new medicine or supplement during the treatment, discuss it with your doctor too.

Precautions for using Famvir

Don’t use the drug without prescription from your doctor. When you’re being prescribed this medicine, tell your past and current medical history to the doctor in detail. Also tell him about any allergies you’re having to any food item, products or medicines, especially to famciclovir or penciclovir. The product may have inactive ingredients that your body might be allergic to. Discuss with your doctor for more details. Various precautions to take care of while using the drug include:

Other diseases

Tell your doctor if you’re suffering from any other disease, especially:

Pregnancy and breast-feeding

Famvir is a pregnancy category B drug as per FDA. Pregnancy category B means that this drug was found safe in animal studies, however there isn’t sufficient and reliable data available for human studies to mark it safe for humans during pregnancy. Therefore, inform your doctor if you’re pregnant or planning to get pregnant or are breast-feeding. It should only be used once your doctor knows the risks and still advises you to use it.

Missed dose

In case you miss a dose, take it as soon as you remember. If you remember it near the time of next dose, then skip the missed dose and continue with the next. Don’t double a dose to make up for the missed one.

Drug storage

Store the drug at room temperature. Keep it away from moisture and light. Avoid storing it in the bathroom. Keep the drug away from pets and children. When disposing off the medicine, don’t flush it in the toilet. Don’t pour them in the drains either. Instead, dispose them properly as advised by your local waste disposal company.