Pharmacology and Toxicology MCQs with Answers
Pharmacology is the study of drugs. It involves examining the interactions of chemical substances with living systems, with a view to understanding the properties of drugs and their actions, including the interactions between drug molecules and drug receptors and how these interactions elicit an effect.
Toxicology is the study of the adverse effects of chemicals (including drugs) on living systems and the means to prevent or ameliorate such effects. In addition to therapeutic agents, toxicologists examine many environmental agents and chemical compounds that are synthesized by humans or that originate in nature.
Pharmacology and Toxicology Multiple Choice Questions with Answers
Acetyl salicylate & phenobarbitone are better absorbed from stomach because they are
a) Weak acids remain non-ionic in gastric PH
b) Weak acids remain ionic in gastric pH
c) Strong acids fully ionized in gastric pH
d) Weak bases which are ionized at gastric pH
Chlorpropamide metabolism is enhanced by
a) Ethyl alcohol
b) Diazepam
c) Lorazepam
d) Chloridazepoxide
Plasma concentration of drug at time 0 is 96(g/ml).ft Vi is 2 hours concentration in plasma at 10 hours will be
a) 48
b) 24
c) 12
d) 3
Protein binding of a drug helps in
a) Distribution
b) Prolonging half life
c) Limiting metabolism
d) All of the above
All of following are examples of prodrugs except
a) Levodopa
b) Enlapril
c) Omeprazole
d) Indomethacin
Drug levels should be monitored in the treatment of
a) Diabetes
b) Epilepsy
c) Status Asthmatics
d) Hypertension
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