Expired Flagyl

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caramel Says:

I was prescribed flagyl once and still have some and I need it...will it hurt me to take it being expired?

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Verwon Says:

This isn't a medication that gets dangerous, once it's expired, there are very few that do.

However, it does start to lose effectiveness, so it most likely won't work as well as it did when new.

If you have an old medication and aren't sure about its safety and efficacy, the best thing to do is to properly dispose of it and see your doctor for a new prescription.

Are there any questions or comments?

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Jonetted Says:
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Hello, I have the same symptoms as I did 5 years ago. Extreme abdominal pain. I have a bottle of 250 mg Metronidazole. It was dispensed in 2013. I see no expiration date on the bottle. Is it still safe to use? I have exactly what is needed...30 pills. The prescription says take 3 pills per day for 10 days. How many years are these pills good for?
Thank you.

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NOTADoctor Says:
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Re: Jonetted (# 3)

The general consensus I've found online for Flagyl and generic Metronidazole is a 2-5 yr shelf life after it's manufactured... and that Metronidazole is a stable drug so won't become toxic after the expiration date... it does lose potency over time though... but could potentially still retain about 80% potency at that 5 year mark.

That said, you don't know how potent the pills actually are and it could be dangerous to take extra causing overdose.

If you need 30 then you probably really do need the full strength and should get a new script... but is it toxic... "probably" not.

Oh, and you probably don't see an expiration because it was taken from a larger container.

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