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Anesthesia

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Analgesia

Definition

• Analgesia is the loss of sensitivity to pain.

• An analgesic is a substance that causes analgesia.

Additional Info

You may be familiar with the term "analgesic" for common pain relievers such as aspirin, for example. Be careful not to confuse pain relievers with anesthetics which are used to block pain and other sensations during surgical procedures.

MSDS Relevance

Acute exposure to certain chemicals such as ethyl chloride can induce analgesia among other symptoms.

Complete or partial insensitivity to pain may sound great, but this presents a serious hazard. Imagine having no sensations of pain in your everyday life -- you might not notice that you have put your hand on a hot stove and suffered third degree burns until you smelled the charred flesh. Ugh!

Further Reading Anesthesia & Analgesia is a journal publised by the International Anesthesia Research Society. Postoperative Analgesia: Economics, Resource Use, and Patient Satisfaction in an Urban Teaching Hospital, from Anesth Analg 2002;94:130-137. Guidelines for the Use of Anesthetics, Analgesics and Tranquilizers in Laboratory Animals at the U of Minnesota. Safety Concerns Associated with Over-the-Counter Drug Products Containing Analgesic/Antipyretic Active Ingredients for Internal Use (PDF file), an FDA Science Background report from 2004. See also: anesthesia, asphyxiant. Additional definitions from Google and OneLook.

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Disclaimer: The information contained herein is believed to be true and accurate, however ILPI makes no guarantees concerning the veracity of any statement. Use of any information on this page is at the reader's own risk. ILPI strongly encourages the reader to consult the appropriate local, state and federal agencies concerning the matters discussed herein.