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Definition of Acyclovir

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Acyclovir: (Brand name: Zovirax) One of a group of antiviral drugs that acts against the herpes viruses, including:

Acyclovir inhibits the replication of viral DNA needed for the virus to reproduce. Virally infected cells absorb more acyclovir than normal cells and convert more of it to an active form, prolonging its antiviral activity where it is most needed. Acyclovir may reduce the severity and duration of a shingles attack if given soon after the onset of symptoms.

For more information, see: Acyclovir.

Reviewed on 10/30/2018

Medically reviewed by Martin Zipser, MD; Board Certified: Surgery

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