Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 5 of 5 for Adverse reaction
  1. Drug Reactions (National Library of Medicine)  
    Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. ...
  2. Blood Transfusion and Donation (National Library of Medicine)  
    Every year, millions of people in the United States receive life-saving blood transfusions. During a transfusion, you receive whole blood or parts of blood ...
  3. Vaccine Safety (National Library of Medicine)  
    What are vaccines? Vaccines play an important role in keeping us healthy. They protect us from serious and sometimes deadly diseases. Vaccines are injections ( ...
  4. Flu Shot (National Library of Medicine)  
    ... vaccine. Other exceptions are people who have: Had reactions to flu shots before Guillain-Barre Syndrome A ...
  5. Tetanus, Diphtheria, and Pertussis Vaccines (National Library of Medicine)  
    ... these vaccines, including those who have had severe reactions to the shots before. Check with your doctor ...