Which statement best describes 'Tachyphylaxis'?
Show answer and explanation
Correct answer: A rapid decrease in response after repeated doses of a drug
Tachyphylaxis is a form of tolerance that develops very quickly (minutes to hours). It is often caused by the rapid depletion of neurotransmitters or acute receptor desensitization.
Keep practicing
More Pharmacodynamics questions
- The 'Intrinsic Activity' of a competitive antagonist is:
- Which of the following receptor types functions by translocating to the nucleus to regulate gene transcription?
- If Drug A has an ED50 of 5 mg and Drug B has an ED50 of 50 mg, and both reach the same Emax, which is true?
- The activation of Adenylate Cyclase, leading to increased cAMP, is the characteristic effect of which G-protein?
- What does a 'Quantal Dose-Response' curve represent?
- Which term describes a genetically determined abnormal or unusual response to a drug?