Verywell Health on MSN19d
Are Cephalosporins Safe If You're Allergic to Penicillin?Studies show that between 1% and 4% of people with a true penicillin allergy are allergic to one or more cephalosporins.
Aminopenicillins such as ampicillin and amoxicillin do share a common R1 side chain with the first-generation oral cephalosporins cefuroxime and cephalexin, so patients with a confirmed allergy to ...
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