Q- A patient with Parkinson’s disease is treated with selegiline. What is the primary mechanism of this drug?
A- Inhibition of catechol-O-methyltransferase
B- Inhibition of monoamine oxidase B
C- Stimulation of dopamine receptors
D- Stimulation of muscarinic receptors
Q- A patient treated with verapamil develops constipation and bradycardia. What class of drug does verapamil belong to?
A- Beta-blockers
B- Calcium channel blockers
C- Potassium channel blockers
D- Sodium channel blockers
Q- A patient with acute gout is treated with colchicine. What is the primary mechanism of this drug?
A- Inhibition of uric acid synthesis
B- Inhibition of xanthine oxidase
C- Inhibition of neutrophil microtubule formation
D- Increased renal uric acid secretion
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