Expiration Of Sulfamethoxazole
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joe Says:

Hi, I have some sulfamethoxazole 800/160mg and the prescribed date was 9/17/2013 and I was wondering if it is ok to still use? Thank you!!

4 Replies

Earliest Newest Votes
Eve D Says:

My smz/tmp is only 8 days past the expiration date on the bottle label. Is it still good to use?

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Ruth Says:

Have a raging uti can't get to doc til Tomorrow Generally take sulfamethoxazole tMp ds tab Expiration date 7/13/16 is it still ok to use Only a bit over the date

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joe Says:

No, thank you very much. I will ask the doc and so thanx again.

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Verwon Says:

Hello, Joe! How are you?

If you think you have an infection that requires an antibiotic, it would be best to see your doctor for a new prescription. Medications tend to lose effectiveness over time, which means that this one may no longer completely eradicate the bacteria, which puts you at risk of developing antibiotic resistant bacteria.

The FDA lists its typical side effects as possibly including nausea, dizziness, headache, non-allergic skin rash and diarrhea.

Is there anything else I can help with?

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