One of the mysteries of the English language finally explained.
Rapidly diminishing response to successive doses of a drug, rendering it less effective. The effect is common with drugs acting on the nervous system.
- ‘Topical steroids should be applied no more than twice a day; more frequent use provides no advantage and may induce tachyphylaxis.’
- ‘Trebling doses of histamine diphosphate were chosen instead of the usual doubling dose because of the half-life of lidocaine, the number of challenges, and the need to minimize possible tachyphylaxis of the histamine effect.’
- ‘Giving methotrexate concurrently, however, suppressed tachyphylaxis, probably by preventing the production of human antichimeric antibodies.’
- ‘The efficacy of calcipotriene is comparable to mid-potency topical corticosteroids; however, it does not cause skin atrophy or tachyphylaxis.’
- ‘This spirometric improvement was maintained throughout the 13-week period without any evidence of tachyphylaxis.’
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