one hundred and sixty-two general surgical patients were prospectively randomized to one of three treatments for postoperative nausea and vomiting : ( 1 ) acupressure using elasticated bands containing a plastic button to apply sustained pressure at the p6 ( neiguan ) point above the wrist , ( 2 ) control dummy bands without the pressure button and ( 3 ) antiemetic injections of prochlorperazine with each opiate given and as required .
C0042963
vomiting
C0033229
prochlorperazine