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Tag: Zovirax vs valtrex

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Which is safer, acyclovir or valacyclovir? A Detailed Comparison

4 min read
According to the World Health Organization, an estimated 3.7 billion people under age 50 (67%) have herpes simplex virus type 1 (HSV-1) infection globally [1.6.2]. When choosing a treatment, a key question is: **which is safer, acyclovir or valacyclovir?** Both are effective, but differences in how the body processes them affect their safety and side effect profiles.