💊 5-HT3 Inhibitors (ex: ondansetron) 🤢🤮 Nausea and vomiting are two of the most common presenting complaints 5-HT3 inhibitors (such as ondansetron) are one of the top 200 drugs prescribed and are used for the prevention of: 🌟 chemotherapy-induced nausea and vomiting 🌟 radiation-induced nausea and vomiting 🌟 postoperative nausea and vomiting 🌟 off-label for nausea and vomiting associated with pregnancy