The most common cause of drug allergies are penicillin antibiotics. A penicillin allergy provokes an allergic reaction that occurs when your body’s immune system overreacts to penicillin antibiotics.

Symptoms of penicillin allergy

Common adverse drug reactions and the use of the penicillins include: diarrhea, hypersensitivity, nausea, rash, neurotoxicity urticaria. Infrequent adverse effects include fever, vomiting, erythema, dermatitis, angioedema, seizures.
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