A member asked:

Is it okay to take expired valtrex (valacyclovir)? can it be poisonous or toxic? can it be less effective?

A doctor has provided 1 answer
Dr. Thomas Namey answered

Specializes in Rheumatology

When did it expire?: * years. Wouldn't take it. One year..I would. Was it in a bottle in a shelf, or sitting out exposed to light. Wouldn't take it sitting out for some time. Most medicines not requiring refrigeration after opening the bottle have a two year "safe" time, assuming no high heat or water!

Answered 9/17/2016

5.2k views

Thank

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