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therapeutic index

therapeutic index (therapeutic window) The therapeutic usefulness of a drug, expressed as a ratio of the maximum nontoxic dose and the minimum effective dose of the drug. The therapeutic index is commonly used as a measure of the range of the dose considered to be safe. However, due to the variation in individual response to a given drug, the therapeutic index cannot be calculated accurately.

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therapeutic index

therapeutic index (th'e-ră-pew-tik) n. the ratio of a dose of a therapeutic agent that produces damage to normal cells to the dose necessary to have a defined level of anticancer activity. It indicates the relative efficacy of a treatment against tumours.

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"therapeutic index." A Dictionary of Nursing. . Encyclopedia.com. 12 Nov. 2018 <https://www.encyclopedia.com>.

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"therapeutic index." A Dictionary of Nursing. . Retrieved November 12, 2018 from Encyclopedia.com: https://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/therapeutic-index

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