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Choice of Antibiotics for Pneumonia

Many classes of antibiotics can treat pneumonia. The antibiotic your doctor chooses typically will be based on:

  • Your age.
  • Your symptoms.
  • How severe your pneumonia is.
  • Other medical problems that you have, if any.
  • What type of bacteria may be causing your pneumonia. Most cases of bacterial pneumonia in otherwise healthy people are caused by Streptococcus pneumoniae and Mycoplasma pneumoniae. Several other bacteria may cause pneumonia in the very young, older adults, and those who have other diseases.
  • Whether you have a type of bacteria that some medicines can no longer kill (resistant bacteria).
  • Whether you are allergic to any antibiotics.

Your doctor's choice of antibiotics may also depend on whether you:

  • Are otherwise healthy and do not have to go to a hospital for treatment.
  • Have other medical conditions but still do not have to go to the hospital.
  • Have to go to the hospital.
  • Have to go to an intensive care unit.

Choosing an antibiotic based on these things avoids the need for extensive culture and sensitivity testing and allows for rapid treatment that has a high rate of cure.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care Medicine, Medical Toxicology
Current as of March 6, 2013

WebMD Medical Reference from Healthwise

Last Updated: March 06, 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.

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