Frasseto 1986.

Methods	Double blinded: yes.
Participants	N=20 Italian men with symptomatic BPH. Age range: 50‐84, mean 67 years. Lost to follow‐up: 0.
Interventions	Control: placebo (n=10). Treatment: P. africanum extract (Tadenan) 75 mg daily (n=10). Treatment duration: 60 days
Outcomes	"Dysuric symptoms" (nocturia, pollachiuria, reduced strenght of flux). Adverse events.
Notes	Prostate size evaluated by ultrasonography.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear