Tachyphylaxis
Rapidly decreasing response to a drug or physiologically active agent after administration of a few doses. In immunology, it is the rapid immunization against the effect of toxic doses of an extract or serum by previous injection of small doses. (Dorland, 28th ed)
Year introduced: 1966(1963)
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Tree Number(s): G07.690.773.992.910, G12.535.425.910
MeSH Unique ID: D013618