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Allergic Conditions: Adverse Reactions to Medications

Many patients experience adverse reactions to medications. Only a small percent of these reactions, however, are true allergic reactions. An allergic reaction means the patient’s immune system is programmed to recognize a certain medication and produce a specific reaction whenever it encounters that drug.

The most potentially severe allergic reaction to a drug is anaphylaxis. This happens when the patient, unknowingly, has a large amount of an allergy protein (called IgE antibody) in his or her body specific for a drug, such as penicillin.

Resources about adverse reactions to mediations:

Visit an allergist/immunologist to learn more about allergic disease and your own medical condition. To find an allergist/immunologist near you, use the AAAAI's online Physician Referral Directory.



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