What are the effect of taking metformin after expire date by more than one year?
Question posted by wyss on 15 Feb 2012
Last updated on 18 February 2012
Answers
DzooBaby
16 Feb 2012
Once medications expire they can begin breaking down which can make them less effective. Some drugs can actually change chemical composition and become toxic but most just lose effectiveness.
Rajive Goel
16 Feb 2012
Rightly explained...
endlessPred
18 Feb 2012
Your best bet is to call the pharmacy where it was filled. Our labels now have expiration dates. Since yours doesn't it will only take a moment of their time. Just be sure it wasn't stored - ever - in ahot or cold place. That can wreck something within a few hours.
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Further information
- Metformin uses and safety info
- Metformin prescribing info & package insert (for Health Professionals)
- Side effects of Metformin (detailed)
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