| Noun | 1. | antiemetic drug - a drug that prevents or alleviates nausea and vomitingdimenhydrinate, Dramamine - antihistamine and antiemetic (trade name Dramamine) used to treat motion sickness Emetrol - trade name for an antiemetic drug that has a mint flavor medicament, medication, medicinal drug, medicine - (medicine) something that treats or prevents or alleviates the symptoms of disease 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 |