Drug Allergies

A drug allergy is an abnormal immune reaction to a medication. Penicillin and related antibiotics are the most common culprits, but reactions also occur with sulfa drugs, aspirin and other NSAIDs, anticonvulsants and contrast dyes. A true drug allergy is different from a known side effect — it involves the immune system reacting to the medication as if it were a harmful substance.

Common symptoms

• Hives, rash or itching
• Swelling of the face, lips or tongue
• Wheezing or shortness of breath
• Fever
• Anaphylaxis — a rare, life-threatening reaction requiring emergency care

Diagnosis & treatment

Dr. Rollins takes a careful medication history and can perform testing to determine whether a reaction was a true allergy. Management usually means avoiding the drug and identifying safe alternatives; patients with a history of severe reactions should carry documentation of their allergy and, when appropriate, an epinephrine auto-injector. Never stop a prescribed medication without consulting your doctor.