Gabric 1987.

Methods	Multisite study Randomization: unclear Blinding: participants, providers
Participants	Geographic region: Croatia Study setting: community N = 30 Baseline IPSS: NR Baseline prostate volume: NR Mean age (range): 65 (40 to 82) years Race: white Diagnostic criteria: BPH, stages I, II (Vahlensieck)
Interventions	Control: placebo Treatment: Prostagutt forte (SR + Urtica dioica) 20 drops 3 times daily Study duration: 6 weeks Lost to follow‐up: none
Outcomes	Physician rating of improvement Peak urine flow Bladder residual volume Dropouts due to side effects: none
Notes	Exclusions: stage IV prostate adenoma, bacterial prostatitis, cystitis, urethritis Full text not available for this update.