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When does tizanidine(zanaflex) 4mg expire?

Responses (2)

Anonymous 1 Nov 2012

Hello kim108. Most all perscriptions are considered to be out of date a year after having been filled. Regards pledge

kim108 1 Nov 2012

Pledge, but can they still be good after that? And if so how long after that year?

Anonymous 1 Nov 2012

When drugs expire, they tend to lose a lot of thier substance. A pill might lose say 30%, then a few months later say another 20%. Its hit and miss. I've used meds that were several years old, and worked fine. It depends on the person as well as the type of drug.

kaismama 1 Nov 2012

If its stored correctly, and the container was closed tightly, it may be good after a year, but the drug company won't tell you that. Their tests are on drugs that they could control the way they were stored, so won't risk saying a longer time is ok. If you try one and it helps, then its probably ok.

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