Pharm Antiemetics & GI medications

In this episode of Nursing Student Deep Dive, we break down the science behind nausea, vomiting, and bowel disorders using the framework from Antiemetics & GI Medications. From the pathophysiology of the chemoreceptor trigger zone (CTZ) to the vomiting center in the brainstem, you’ll connect the “why” behind symptoms with the “how” behind treatment.

We walk through the six major antiemetic classes—like 5-HT3 antagonists, dopamine antagonists, NK1 inhibitors, antihistamines, anticholinergics, and cannabinoids—focusing on mechanisms of action, clinical indications, boxed warnings, and the high-yield nursing red flags you need for exams and real-world practice. Then we pivot into IBD and IBS, simplifying Crohn’s vs. ulcerative colitis, and breaking down key meds including corticosteroids, immunomodulators, biologics, and targeted IBS therapies.

If you’ve ever mixed up serotonin syndrome risks, QT prolongation concerns, EPS warnings, or when alosetron is actually appropriate, this episode will sharpen your clinical judgment and help you think like a nurse—not just memorize like a student.