Risk factorsBy Mayo Clinic Staff
While anyone can have an allergic reaction to penicillin, a few factors can increase your risk. These include:
Nov. 22, 2014
- A history of other allergies, such as food allergy or hay fever
- Allergic reaction to another drug
- A family history of drug allergy
- Increased exposure to penicillin, because of high doses, repetitive use or prolonged use
- Certain illnesses commonly associated with allergic drug reactions, such as infection with HIV or the Epstein-Barr virus
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