<prompt> Inducing agent with maximum incidence of vomitingKetamineEtomidateThiopentonePropofol  <response>: Postoperative nausea and vomiting are more common following etomidate than following propofol or barbiturate induction. Propofol also possesses significant antiemetic activity with small sub hypnotic doses i.e., 10 mg in adults. The median concentration of propofol with an antiemetic effect was 343 ngmL, which also causes a mild sedative effect. This concentration can be achieved by an initial dose of propofol infusion of 10 to 20 mg followed by 10 ugkgminute. Ref: Millers anesthesia 8th edition Ref: Morgan Mikhails clinical anesthesiology 6e 