Drug Allergy: Reduce Exposure Make an Appointment Refer a Patient Ask a Question Reviewed by Christine B. Cho, MD (December 01, 2016) How Can I Prevent Medication/Drug Reactions? Once a diagnosis is made, avoidance of the implicated medication is discussed, and the treatment of accidental exposures is thoroughly reviewed. Here are a few tips to help prevent an allergic reaction to drugs: Memorize trade and generic names of the medications that cause a reaction, and check labeling on products you buy. Make sure you tell all caregivers about your allergy. Wear a medical alert bracelet or necklace describing your allergy, just in case you ever need emergency care. If your doctor prescribes an epinephrine shot in case of an anaphylactic reaction, remember to carry it with you. Drug Allergy: Diagnosis and Treatment Drug Allergy: Symptoms Clinical Trials For more than 100 years, National Jewish Health has been committed to finding new treatments and cures for diseases. Search our clinical trials.