It was determined that peppermint oil had a 40% effect on reducing PONV, 34% effect on reducing postoperative antiemetic use, and 75% effect on reducing severity of nausea.

In the control group, 7 (18.4%) used antiemetics... and none of those patients... used antiemetics.

In the control group, 18 (47.8%) patients experienced nausea... In contrast, the intervention group included only 2 (5.3%) patients who experienced nausea...

Hemodynamic parameters did not differ significantly between the 2 groups. The systolic blood pressure of the control group was significantly greater than that of the intervention group only at minute 95 and at hour 24 after surgery.

In the control group, 11 (28.9%) experienced vomiting... and none of those patients experienced vomiting...