antiemetic - a drug that prevents or alleviates nausea and vomitingEmetrol - trade name for an antiemetic drug that has a mint flavor prochlorperazine - antipsychotic and antiemetic drug used to treat schizophrenia and to combat nausea and vomiting Phenergan, promethazine - antihistamine (trade name Phenergan) used to treat allergies; also an antiemetic used to treat motion sickness |