Worst Pills
valacyclovir (VALTREX)

Drug and Dietary Supplement Profiles

A comprehensive review of the safety and effectiveness of this drug. If the drug is not a Do Not Use product, information on adverse effects, drug interactions and how to use the medication are included.
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Disease and Drug Family Information

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  • Antibiotics [hide all summaries]
    Antibiotics (drugs used to treat bacterial infections) are overwhelmingly misprescribed in the United States. Despite congressional hearings and numerous academic studies on this issue, it has become the general consensus that 40 to 60% of all antibiotics in this country are misprescribed. New studies continue to confirm the fact that a large proportion of antibiotic prescribing for both children and adults continues to be inappropriate.

Worst Pills, Best Pills Newsletter Articles

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  • Important Questions About Shingles [hide all summaries]
    (June 2016)
    Shingles is a very common disease caused by the chicken (herpes zoster) virus. Elderly adults are particularly vulnerable to developing this painful and sometimes debilitating condition. Learn the facts about shingles and how you can lower your risk of developing it.
  • Drugs for Cold Sores: How Well Do They Work? [hide all summaries]
    (May 2010)
    The article reviews studies showing that widely-sold prescription drugs for treating cold sores, such as ZOVIRAX, DENAVIR, FAMVIR, and VALTREX and ABREVA have significant side effects, are expensive and, on the average, only reduce the duration of the cold sore by less than one day. The article describes other non-drug methods to treat cold sores that make more sense.
  • Valacyclovir (VALTREX), Penciclovir (DENAVIR), and Docosanol (ABREVA) – How Much is One Day Without a Cold Sore Worth? [hide all summaries]
    (January 2003)
    The editors of the highly respected Medical Letter On Drugs and Therapeutics, an independent source of drug information written for physicians and pharmacists, reviewed the use of the antiviral drug valacyclovir (VALTREX) for the treatment of cold sores (herpes labialis) in their November 11, 2002 issue. This prompted us to evaluate two other Food and Drug Administration (FDA) approved drugs, penciclovir (DENAVIR) and docosanol (ABREVA), together with valacyclovir for cold sore treatment. If you decide not to spend the money for one of these drugs every time a cold sore appears, there are things you can do to control discomfort, allowing healing and avoid complications. The cold sore should....

Additional Information from Public Citizen

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