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When two drugs act at different receptors or by different machanisms on the same physiological system and produce opposite effect

Functional antagonism i.e insulin and glucagon on blood sugar
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This question belongs to the set "Revision of Pharmacology, some basic points (one liners)". Click below to read detailed notes and attempt the full quiz.

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Try These Similar MCQs

  • A Hyoscine hydrobromide
  • B Morphine sulfate
  • C Diclofenac sodium
  • D Quinine dihydrochloride
  • A Is more painful
  • B Produces faster response
  • C Is unsuitable for depot preparations
  • D Carries greater risk of anaphylactic reaction
  • A CYP378A
  • B CYP4B2
  • C CYP3A4
  • D CYP256
Explanation: CYP3A4 is involved in the metabolism of majority of drugs and is also expressed extrahepatically. In fact, poor bioavailability of many drugs is attributed to the drug metabolism by CYP3A4 in gastrointestinal tract.
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