Smart Online Assessments For Serious Exam Preparation
Start Assessment ➔

What do you want to learn today?

Home / Question Bank / Pharmacology / Question Details
One Liner

When the effect of one drug is decreased or abolished in the presence of another drug

Drug antagonism

More Questions & Answers

Read the Complete Topic

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.

View Full Post →

Try These Similar MCQs

  • A Heparin & Protamine
  • B Protamine & Zinc
  • C Heparin & Prothrombin
  • D All the above
Explanation: Chemical antagonism does not involve any receptors. Protamine is a positively charged protein at physiological pH and thus antagonizes the effects of Heparin which is negatively charged at physiological pH.
  • A Canal of Schlemm
  • B Ciliary body
  • C Ciliary muscle
  • D Sphincter pupillae muscle
  • A Raynaud’s disease
  • B Infection
  • C Heart attack
  • D Epilepsy
  • 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.

Explore Related Study Material


- Advertisement -

Scroll to Top