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Valacyclovir |
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What is Valacyclovir and why is it prescribed? Valacyclovir is used to treat herpes zoster. It is also prescribed to relieve the sores caused by genital herpes. Valacyclovir should not be used by anyone with a weak immune system, such as those with HIV infection or those who have undergone a bone marrow or kidney transplant. Valacyclovir can cause serious side effects, including death, in such people. How should you take Valacyclovir? Follow your doctors directions for taking Valacyclovir. If you are taking Valacyclovir for shingles, you should start using it as soon as possible after your doctor has made a diagnosis. It is best to see a doctor and start the drug within 48 hours of first noticing the rash. If you wait more than 72 hours after you first get a herpes zoster rash, Valacyclovir may not be effective. If you are using Valacyclovir for genital herpes, begin taking it at the first sign of an attack. The medication may not be effective if you wait longer than 72 hours after the first attack or 24 hours after a later attack. You may take Valacyclovir with or without food. If you miss a dose take it 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. Do not take two doses at the same time. Store Valacyclovir at room temperature. Are there any Valacyclovir side effects? Valacyclovir side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Valacyclovir side effects may include abdominal pain, aggressive behavior, agitation, allergic reactions, coma, confusion, decreased consciousness, depression, diarrhea, dizziness, facial swelling, hallucinations, headache, hepatitis, high blood pressure, joint pain, mania, menstrual problems, nausea, rapid heartbeat, rash, visual abnormalities, and vomiting. What are the possible food and drug interactions when taking Valacyclovir? If Valacyclovir 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. Check with your doctor before combining Valacyclovir with cimetidine (Tagamet) and/or probenecid (Benemid). Are there any special warnings about Valacyclovir? High doses of Valacyclovir have proved dangerous in people whose immune system is compromised because of HIV infection, bone marrow transplant, or kidney transplant. If your kidneys are not functioning properly, or you are taking drugs that may damage the kidneys such as Neomycin or Streptomycin, Valacyclovir can make your condition worse or affect your central nervous system. Valacyclovir relieves the symptoms of genital herpes, but it is not a cure. There is also no evidence that it will prevent transmission of the disease. Valacyclovir is not intended for use in children. |
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Information on this website is provided for educational purposes and should not replace discussions with your doctor. |
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