Sexually Transmitted Diseases in Men (STDs in Men) »
Sexually transmitted diseases (STDs) are infections that are transmitted during any type of sexual exposure, including intercourse (vaginal or anal), oral sex, and the sharing of sexual devices, such as vibrators. In the professional medical arena, STDs are referred to as STIs (sexually transmitted infections). This terminology is used because many infections are frequently temporary. Some STDs are infections that are transmitted by persistent and close skin-to-skin contact, including during sexual intimacy. Although treatment exists for many STDs, others currently are usually incurable, such as HIV, HPV, hepatitis B and C, and HHV-8. Furthermore, many infections can be present in, and be spread by, patients who do not have symptoms.
The most effective way to prevent the spread of STDs is abstinence. Alternatively, the diligent use of latex barriers, such as condoms, during vaginal or anal...
Read the Sexually Transmitted Diseases in Men (STDs in Men) article »
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FAMVIR
(famciclovir) Tablets
The active ingredient in FAMVIR tablets is famciclovir, an orally administered prodrug of the antiviral agent penciclovir. Chemically, famciclovir is known as 2-[2-(2-amino-9H-purin-9-yl)ethyl]-l,3-propanediol diacetate. Its molecular formula is C14H19N5O4; its molecular weight is 321.3. It is a synthetic acyclic guanine derivative and has the following structure
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Famciclovir is a white to pale yellow solid. It is freely soluble in acetone and methanol, and sparingly soluble in ethanol and isopropanol. At 25°C famciclovir is freely soluble ( > 25% w/v) in water initially, but rapidly precipitates as the sparingly soluble (2%-3% w/v) monohydrate. Famciclovir is not hygroscopic below 85% relative humidity. Partition coefficients are: octanol/water (pH 4.8) P=1.09 and octanol/phosphate buffer (pH 7.4) P=2.08.
FAMVIR tablets contain 125 mg, 250 mg or 500 mg of famciclovir, together with the following inactive ingredients: hydroxypropyl cellulose, hydroxypropyl methylcellulose, lactose, magnesium stearate, polyethylene glycols, sodium starch glycolate and titanium dioxide.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Less serious side effects may include:
This is not a complete list of side effects and others may occur. Call your doctor for...
Read All Potential Side Effects and See Pictures of Famvir »
Before taking famciclovir, tell your doctor or pharmacist if you are allergic to it; or to penciclovir; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney problems.
This drug may rarely make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
This medication may contain lactose. If you have certain conditions such as galactose intolerance, severe lactase deficiency (not lactose or milk intolerance), or...
Last reviewed on RxList: 3/18/2011
This monograph has been modified to include the generic and brand name in many instances.
Here is a collection of user reviews for the medication Famvir sorted by most helpful.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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