Egypt 1986.

Methods	'Randomized double blind' but no further details. Exclusions: 8 women (4%), 4 in each group. with missed abortion or hydatidiform mole, diagnosed after randomisation.
Participants	178 women aged 17‐43 years at 6‐20 weeks' gestation with vaginal bleeding and cramps or labour‐like pains.
Interventions	Exp: buphenine hydrochloride 6 mg x 3/day for 3 days, then 6 mg x 2/day for 2 days, then 6 mg/day for 2 days. Control: placebo tablets. Both groups: ultrasound after one week. Trial intervention repeated if further symptoms.
Outcomes	Women: none reported. Baby: intrauterine death (miscarriage or stillbirth), preterm birth (< 37 completed weeks).
Notes	If imminent miscarriage, women in both groups admitted for 2 hr iv infusion 5 mg buphenine hydrochloride in 500 ml 5% dextrose.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear

ctrl: control 
 exp: experimental 
 hr: hour 
 iv: intravenous