U.S. Department of Health and Human Services


Drug Allergies


Learn how to recognize and react to anaphylaxis, a serious allergic reaction to food, medication, insect stings, and latex.

Review Date: February 11, 2013

Food Allergy and Anaphylaxis Network

Asthma: Medicines That Can Make It Worse

Some medicines might make your asthma worse. it's important to know about medicines that might cause problems before you take them.

Review Date: March 09, 2011

American Academy of Family Physicians

Drug Allergy

Learn to recognize the symptoms of a drug allergy and factors that can increase your risk of an allergic reaction.

Review Date: November 13, 2014

Mayo Foundation for Medical Education and Research

The Facts About Stevens-Johnson Syndrome- (PDF)

Stevens Johnson Syndrome (SJS), and TENS (Toxic Epidermal Necrolysis Syndrome) another form of SJS are severe adverse reactions to medication. Recognition of the early symptoms of SJS and prompt medical attention may be life-saving.

Review Date: December 15, 2011

Stevens Johnson Syndrome Foundation

Vaccine Adverse Event Reporting System (VAERS)

This site provides details for reporting adverse events which may be associated with vaccines, and discusses the National Childhood Vaccine Injury Act. VAERS is a joint program of the Centers for Disease Control and Prevention and the Food and Drug Administration.

Review Date: January 31, 2013

Center for Biologics Evaluation and Research (CBER)