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Anesthetic

An anesthetic is a medicine that helps block pain. It may help a person relax, become sleepy or forgetful, and/or become unconscious for surgery.

Anesthesia specialists use these medicines and close monitoring to help keep people safe and comfortable during surgery and other medical procedures.

There are three main types:

  • Local anesthetics numb a small part of the body, such as the nose or mouth. They are given as a shot. Or they are applied topically.
  • Regional anesthetics numb a larger part of the body. They are given as a shot around major nerves or the spinal cord.
  • General anesthetics make a person unconscious. They are given as a gas or as a shot directly into the bloodstream (IV, through a vein).

Some topical anesthetics are over-the-counter medicines. These medicines can be used as home treatment for minor injuries.

By Healthwise Staff
Primary Medical Reviewer Adam Husney, MD, MD - Family Medicine
Specialist Medical Reviewer John M. Freedman, MD, MD - Anesthesiology
Last Revised September 30, 2011

WebMD Medical Reference from Healthwise

Last Updated: September 30, 2011
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.