Not Medical Advice: Pill imprint M 315 has been identified as Ondansetron hydrochloride 4 mg.
Ondansetron is used to prevent nausea and vomiting caused by cancer chemotherapy, radiation therapy, and surgery. Ondansetron is in a class of medications called serotonin 5-HT₃ receptor antagonists. It works by blocking the action of serotonin, a natural substance that may cause nausea and vomiting.
This medication is available only with your doctor's prescription.
US Brand Names: