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October 2021

Hormetic effects in pharmacology: pharmacological inversions as prototypes for hormesis.

Journal/Book: Health-Phys. 1987 May; 52(5): 527-30. 1987;

Abstract: AB: A biological physiological or biochemical response to a drug at a low dose may be completely opposite to that response when a larger dose is administered. Also a response to a single dose of an agent may shortly afterwards be completely reversed. These observations are as old as the use of medicinal preparations or alcoholic beverages. The term "pharmacological inversions" can be used to describe these phenomena. A subset of the dose-response relationship is that of "hormesis." This term hormesis, is often used to denote the beneficial response of an organism to a low dose of a physical or chemical agent and a detrimental response to a much larger dose. Many but not all of the pharmacological inversions can serve as prototypes of hormesis. Examples of the dose-time effect or the dose-response relationship (which may include the phenomenon of hormesis) can be found among these agents: alcoholic beverages anesthetic gases barbiturates some tranquilizers many vitamins caffeine nicotine salicylates enzyme inducers and some toxic metals. hl

Keyword(s): Dose-Response-Relationship -Drug


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