A pharmaceutical composition for treating urinary incontinence and/or enuresis, which comprises at least 0.5-20 wt % of a mixture of flavonoids, 2-20 wt % of condensed tannins or proantocyanidins and 0.3-60 wt % of gamma aminobutyric acid (GABA), with respect to the total composition. The composition additionally comprises at least 50% of a Humulus lupulus extract. The composition is used for preparing a medicine for treating incontinence and/or enuresis, in particular enuresis in children, as well as in adults or the elderly who have urine leaks such as incontinence due to stress or urgency.