<prompt> Drug of choice for prophylaxis of motion sickness isScopolamineOndansetronMetoclopramideDomperidone  <response>: Doc for prophylaxis of motion sickness is - Hyoscine scopolamine If hyoscine is not given in the option them first generation Antihistaminics Promethazine Ondansetron -Doc for chemotherapy radiotherapy induced vomiting. Metoclopramide- prokinetic drug Domperidone prokinetic drug - D2 receptor antagonist Drug of choice for levo dopa induced vomiting Both Metaclopromide and Domperidone are used for postoperative, drug and disease induced nausea vomiting. 