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| Methods | Randomized controlled trial |
| Participants | Patients undergoing vaginal surgery, gynaecological laparotomy, or varices surgery, 20 to 69 years of age |
| Interventions | Scopolamine with perphenazine 5 mg IM or scopolamine with thioproperazine IM 0.5 mg or 1 mg or 2 mg dose right after end of anaesthesia |
| Outcomes | PONV, requirement for postoperative analgesics, sedation, blood pressure |
| Notes | Missing information about study design and dose of scopolamine; no contact details available |
