Tachyphylaxis

A rapid tolerance to a potential toxic dose of a drug shortly after receiving smaller doses.


Rapid protection against a toxic substance by previous injection of tiny doses.


An effect of a drug or neurotransmitter which becomes less with repeated doses.


Rapid loss of a therapeutic response to a pharmacological agent.


A falling-off in the effects produced by a drug during continuous use or constantly repeated administration, common in drugs that act on the nervous system.


Rapid immunization to a toxic dose of a substance by previously injecting tiny doses of the same substance.


 


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