Pharmacy Quiz Practice Test your knowledge on core topics in pharmacology, therapeutics, and drug interactions. Perfect for students, professionals, or anyone preparing for pharmacy exams. This quiz covers key concepts such as drug mechanisms, clinical uses, side effects, dosage forms, patient counseling, and treatment guidelines—an excellent tool for review and self-assessment. Choose the best answer for each multiple-choice question and click "Submit All" at the end to see your results. 1. Which of the following drugs have narrow therapeutic index? a. Lithium b. Diazepam c. Penicillin d. Desipramin 2. Proton pump inhibitors are more effective when they are given a. After meals b. Shortly before meal c. Along with H2 blocker d. During prolonged fasting period 3. Which of the following is the fastest acting anticoagulant? a. Warfarin b. Heparin c. Protamine sulfate d. Vitamin K 4. Which of the following statement regarding asthma is incorrect? a. It is irreversible small airways obstruction b. Asthmatics lungs are more sensitive to lower dose of allergens c. Asthmatics should not use antihistamines d. Progressive airways inflammation 5. The antidiabetic agent most likely to cause lactic acidosis is: a. Chlorpropamide b. Tolbutamide c. Glipizide d. Metformin 6. Very widely used drug Losartan is a: a. AT1 receptor partial agonist b. Nonselective AT1 + AT2 receptor antagonist c. Selective AT1 receptor antagonist d. Selective AT2 receptor antagonist 7. A highly ionized drug: a. Is excreted mainly by the kidney b. Crosses the placental barrier easily c. Is easily absorbed from the intestine d. Is highly protein bound 8. Which of the following parameters can get elevated after administration of thiazide diuretic? a. Potassium b. BUN c. Urea d. Glucose 9. N-acetyl cysteine is an antidote for acute poisoning from: a. Salicylates b. Acetaminophen c. Theophylline d. Lithium 10. Gynecomastia can occur as a side effect of a. Bromocriptine b. Cimetidine c. Femotidine d. Levodopa 11. The following action of adrenaline is not mediated by 3 receptors: a. Dilatation of blood vessels b. Bronchodilation c. Dilatation of pupil d. Renin release from kidney 12. The constellation of adverse effects associated with nonsteroidal anti-inflammatory drugs include the following except: a. Sedation b. Gastric irritation c. Fluid retention d. Rashes 13. The Ames test is frequently carried out before clinical trials are begun. The Ames test is a method that detects: a. Carcinogenesis in primates b. Carcinogenesis in rodents c. Mutagenesis in bacteria d. Teratogenesis in any mammalian species 14. Quinidine has the following action on electrophysiological properties of the heart except: a. Decreases automaticity of Purkinje fibres b. Abolishes after depolarizations c. Prolongs refractory period of atrial fibres d. Decreases membrane responsiveness of atrial and ventricular fibres 15. An example of a phase I drug-metabolizing reaction is: a. Acetylation b. Glucuronidation c. Hydroxylation d. Methylation Submit All