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Famvir |
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What is Famvir and why is it prescribed? Famvir tablets are used to treat herpes zoster in adults. When prescribed for shingles, Famvir works best in people age 50 or over. Famvir is also prescribed to treat attacks of genital herpes and to prevent future flare-ups. For people with HIV infections, it is used as a treatment for both genital and oral herpes. Famvir is most effective if started within the first 48 hours after shingles first appears. Treatment should be started at the first sign or symptom of genital herpes. Famvir treatment may not be effective if it is delayed more than 72 hours after the herpes zoster rash first appears or more than 6 hours after genital herpes becomes evident. It is important to see your doctor as soon as possible after symptoms appear. How should you take Famvir? Follow your doctors directions for taking Famvir. For maximum benefit, take Famvir for the full time of treatment. Do not take Famvir more often or for a longer time than your doctor directs. You may take Famvir with meals or in between. If you miss a dose take the forgotten dose as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Never take two doses at the same time. Store Famvir at room temperature. Are there any Famvir side effects? Famvir side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. More common Famvir side effects may include constipation, diarrhea, dizziness, fatigue, fever, headache, nausea, and vomiting. Less common Famvir side effects may include abdominal pain, back pain, chills and fever, gas, indigestion, injury, insomnia, irritated sinuses, itching, joint pain, loss of appetite, pain, prickling or burning sensation of the skin, sleepiness, sore throat, and upper respiratory infection. There have been infrequent cases of hallucinations, hives, and rash, and some people, especially older adults, may experience confusion, including delirium and disorientation. What are the possible food and drug interactions when taking Famvir? If Famvir is taken with certain other drugs, the effects of either could be increased, decreased, or altered. Be sure to inform your doctor of all the prescription and over the counter medications you are taking. It is especially important to check with your doctor before combining Famvir with probenecid (Benemid), a drug used to treat gout. Are there any special warnings about Famvir? Famvir speeds healing of shingles and genital herpes, but it is not a cure. Famvir may not prevent transmission of genital herpes to others. If you have any kidney problems, be sure your doctor knows about them before prescribing Famvir for you. |
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