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Atlanta, GA
A 30-year-old female asked:

Does flagyl 500mg contain penicillin?

3 doctor answers6 doctors weighed in
Dr. Hunter Handsfield
Infectious Disease 55 years experience
Nope: Penicillin and metronidazole (Flagyl®) are entirely different antibiotics. Neither one "contains" the other. If you may have had a penicillin allergy and now have been prescribed metronidazole, you need not worry. There is no increased risk of an allergic reaction.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. David Ziring
Pediatric Gastroenterology 24 years experience
No: Flagyl only contains metronidazole. Penicillin contains penicillin. The pharmacist does not mix the two together. They are unrelated.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Diane Minich
Family Medicine 39 years experience
No: It is not a penicillin.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Nov 28, 2017

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