Behavioral Tolerance - Research Article from Encyclopedia of Drugs, Alcohol & Addictive Behavior

This encyclopedia article consists of approximately 4 pages of information about Behavioral Tolerance.
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In everyday language, TOLERANCE implies the ability to withstand something. In pharmacology, the term tolerance is close to this meaning. To understand the technical meaning of the word, however, requires an understanding of the concept of the potency of a drug. A drug's potency is expressed in terms of the amount (the dose) of the drug needed to produce a certain effect. To illustrate, drugs may be compared with respect to potency. For example, relief from headache may be achieved with 650 milligrams of aspirin or with 325 milligrams of ibuprofen; in this case ibuprofen is said to be more potent, because less drug is needed to produce a particular effect (relief of headache). Tolerance is said to occur when a drug becomes less potent as a result of prior exposure to that drug. That is, following exposure (usually repeated or continuous administrations) to a drug, it may...

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This section contains 1,077 words
(approx. 4 pages at 300 words per page)
Buy the Behavioral Tolerance Encyclopedia Article
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Macmillan
Behavioral Tolerance from Macmillan. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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