Medical Dictionary


noun acet·y·la·tor \ə-ˈse-tə-ˌlā-tər\

Medical Definition of acetylator

  1. :  an organism that acetylates a substance during metabolism—used especially to describe the rate at which a person acetylates certain drugs (such as isoniazid, hydralazine, or sulfamethazine) in the body People known as slow acetylators, for instance, take a longer time than fast acetylators to clear certain drugs from the liver.—Robin Marantz Henig, The New York Times, 10 Oct. 2004 The variation among acetylators has been shown to be genetically determined. Slow acetylators may experience undesirable side effects resulting from higher drug concentrations in the body.

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feeling or affected by lethargy

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