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A member asked:

If i'm allergic to penicillin is it safe to take keflex pulvales?

A doctor has provided 1 answer

No: If you are truly allergic to penicillin, you should avoid all penicillin derivatives and the first generation cephalosporins. Keflex is a first gen. Cephalosporin and may cross react with penicillin. See a board certified allergist to help you determine if penicillin is a true allergy for you.

Answered 10/3/2016

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