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Antibiotics

Antibiotics are medicines used to kill bacteria that cause infections.

A doctor will choose an antibiotic to treat an illness based on:

  • Whether taking an antibiotic will reduce the length or severity of the illness.
  • Whether the person is allergic to any antibiotics.
  • How likely it is that a certain antibiotic will kill the bacteria believed to be causing the symptoms.
  • The symptoms and the severity of the illness.
  • Other medical problems that the person has.
  • The person's age. (For example, some antibiotics are not safe for children.)
  • Whether a woman is pregnant.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerTheresa O'Young, PharmD - Clinical Pharmacy
Current as ofMarch 10, 2013

WebMD Medical Reference from Healthwise

Last Updated: March 10, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.