Nearby Words

therapeutic index

therapeutic index

noun Pharmacology.
the ratio between the dosage of a drug that causes a lethal effect and the dosage that causes a therapeutic effect.
Also called margin of safety.


Origin:
1925–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Therapeutic index is always a great word to know.
So is bezoar. Does it mean:
a fool or simpleton; ninny.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
American Heritage
Medical Dictionary

therapeutic index n.
The ratio between the toxic dose and the therapeutic dose of a drug, used as a measure of the relative safety of the drug for a particular treatment.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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