| Methods | N; B; Y; N; N; N | |
| Participants | 150 women; laparoscopy; ASA1,2 | |
| Interventions | Induction Either: PLACEBO; or DROPERIDOL 0.625 or 1.25mg i.v.; or METOCLOPRAMIDE 10mg; or ONDANSETRON 4mg | |
| Outcomes | PACU; PACU discharge‐24 hours | |
| Notes | Unclear numbers per group. Unclear how retching categorized. Side effect "droperidol sedative". | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment (selection bias) | Unclear risk | B ‐ Unclear |
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