Mandressi 1983.

Methods	Double blinded: yes. Randomization: Identical packaging
Participants	N=60 Italian men with symptomatic BPH. Age range: 50‐80.
Interventions	Control 1: placebo (n=20). Control 2: Permixon 320mg daily (n=20). Treatment: Pygeum africanum extract Average (n=20). Treatment duration: 30 days. Lost to follow‐up: unclear
Outcomes	Patient self‐rating of "Dysuric symptoms" (pain on voiding) Nocturia. Adverse events. Dropouts due to side effects: none
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear