This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
Drugs used to control post–operative vomitinga) Diazepamb) Phenobarbitonec) Aprepitantd) Droperidole) Ondansetron 
Select and explain. 
A. acde, B. bde, C. abcd, D. abde
A: acde
Answer: A: acde 
Explanation: Drugs used in PONY

For prevention :- Propofol, droperidol, metoclopramide, ondansetron.
For control (Treatment) :- Anticholinergics (Hyoscine), H1 antihistaminics (Promethazine), Neuroleptics (Droperidole), Prokinetics (Metoclopramide, domperidone, cisapride), 5-HT3 antagonists (ondansetron), SPA (Apretitant), Adjuvants (Dexamethasone, BZDs, Cannabinoids, Clonidine & ephedrine).