Apiliogullari 2007.

Study characteristics
Methods	RCT
Participants	181 women. Spinal anaesthesia for CS.
Interventions	Intervention 1: antihistamine (Comparison 4) Dimenhydrinate 50 mg. N = 62. Intervention 2: antihistamine (Comparison 4) Dimenhydrinate 100 mg. N = 60. Comparator: placebo Saline. N = 59.
Outcomes	PONV, sedation, side effects.
Notes	Setting: Dr. Faruk Sukan Hospital and Selcuk University, Medical Faculty, Konya, Turkey. Dates: not described Funding source: not reported. Declaration of interest: not reported Abstracts only. Unpublished data provided by author
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	No information.
Allocation concealment (selection bias)	Unclear risk	No information.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Reported as double‐blind, no other details provided.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Reported as double‐blind, no other details provided.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	No information.
Selective reporting (reporting bias)	Unclear risk	We were unable to assess the trial protocol.
Other bias	Unclear risk	No information.