Which pharmacokinetic parameter indicates the time required for the plasma concentration of a drug to decrease by 50 percent?
Correct answer: A. Half-life
- A. Half-life
- B. Clearance
- C. Bioavailability
- D. Volume of distribution
Explanation
The elimination half-life is the time needed for the plasma drug concentration to fall by half. Clearance describes removal capacity, while volume of distribution describes drug distribution in the body.
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About Veterinary Pharmacology
Covers how drugs act in animals, including pharmacokinetics, pharmacodynamics, routes of administration, dosage forms, adverse effects and drug interactions. Major groups include antimicrobials, antiparasitics, analgesics, anaesthetics, anti-inflammatory drugs, hormones and cardiovascular medicines, with attention to withdrawal periods and species differences.
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