Wehnert 1989.

Methods	RCT. Placebo controlled parallel design. Masking of assessors not stated.
Participants	46 patients. Inclusion criteria: Urgency, urge incontinence. Exclusion criteria: Other urological and gynaecological pathology.
Interventions	Treatment 1: propiverine 45mg od (n=25) Treatment 2: placebo (n=25) Treatment 3: flavoxate 300mg od (n=21) 3 x 4 week treatments.
Outcomes	Symptom scale (5 point). Frequency of micturition, nocturia. Urodynamic parameters.
Notes	Translated from German. No dropouts. Data not in useable form for this review.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear