Question

3. A 67-year-old woman, receiving chemotherapy for metastatic ovarian cancer, develops nausea and vomiting. IV ondansetron is ordered prior to her next dose of chemotherapy. What is the mechanism of action of ondansetron, and what are the common side effects associated with this drug?

4. A 48-year-old man presents for evaluation of heartburn. He reports a burning feeling in his chest after eating, worse after eating spicy foods, and sometimes is awakened at night with symptoms. He has tried OTC antacids and H-2 blockers with partial relief. An upper GI X-ray series reveals GERD. Along with appropriate diet and lifestyle modifications recommendations, he is prescribed omeprazole. What is the mechanism of action of omeprazole? How long before he achieves maximal inhibition of acid secretion?

Answer 1