Emeset 4mg Tablet MD is an antiemetic medication used to control vomiting and nausea. It works by blocking serotonin, a brain chemical that causes these symptoms, particularly after surgery or during cancer treatment. It's commonly used for adults and children aged 4 and older to prevent nausea and vomiting associated with chemotherapy, radiation therapy, and surgery. 

Potential side effects include fatigue, headache, diarrhea, and constipation. Adhere to your doctor's instructions regarding dosage and duration. Report any persistent symptoms or adverse effects immediately.