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If I'm allergic to keflex antibiotics am I allergic to penicillin?I was put on Keflex...
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High School Teacher
Posted by wannam on September 26, 2011 at 8:01 AM (Answer #1)
Keflex (or Cephalexin) is a 1st Generation Cephalosporin. Just as Wannam mentioned, they are Beta-Lactam drugs that inhibit cell wall synthesis, but they are less susceptible to penicillinases.
There is a 5-30% chance that you can have a cross-sensitivity.
Posted by lanarn2md on September 27, 2011 at 9:41 AM (Answer #2)
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