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A member asked:
My urine culture showed an e coli resistant to penicillin and ampicillin, why did the doc prescribed me cefixime that is related to penicillin
3 doctors weighed in across 2 answers
Don't know: Your dr obviously checked drug sensitivities from turine culture. Cefixime is a 3rd generation cephalosporin & a very effective antibiotic, not related to penicillin. However, cross resistance between penicillin & 1st generation cephalosporins like Keflex is common. Wonder why dr didn't prescribe macrodantin, Bactrim or cipro, (ciprofloxacin) all 3 v effective & much cheaper. Possibly your e. Coli v resistant?
Answered 6/26/2014
5.2k views
Different class: Cefixime is related, but a different class and generation; it was specifically created to kill things like e coli resistant to the original penicillin and ampicillin.
Answered 6/24/2014
5.2k views
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