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Will you have itching with Keflex and Amoxicillin?

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Answered by

General & Family Physician
Practicing since : 2001
Answered : 10432 Questions
Hi, At one point I'd had an itching hive kind of reaction to Reflex. Since then when needed Ive taken Z-pacs, but wonder if Amoxicillin is also an option with that history.

Thats Keflex and autocorrect keeps changing that..
Thank you
Thu, 7 Jun 2018 in Medicines and Side Effects
Answered by Dr. Michelle Gibson James 54 minutes later
Brief Answer:
slight small risk of reaction

Detailed Answer:
Hi, thanks for using healthcare magic

Keflex is in the family of meds/antibiotics called cephalosporin. It is one of the first generation of cephalosporins to be developed.

There is some cross reactivity or sensitivity with amoxicillin. This means that some persons that are allergic to cephalosporin , may also be allergic to amoxicillin and vice versa.
This risk is about 1 % or occurs in 1 out of 100 persons with this allergy.

This means that there is a very slight change of allergic reaction

I hope this helps, feel free to ask any other questions
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