The benzylamine derivative represented by the formula below and a pharmaceutically acceptable acid addition salt thereof, and a pharmaceutical containing the derivative or the pharmaceutically acceptable acid addition salt thereof, and a therapeutic or prophylactic agent for pollakiuria or urinary incontinence containing the derivative or the pharmaceutically acceptable acid addition salt thereof are provided. The benzylamine derivative of the present invention and the pharmaceutically acceptable acid addition salt thereof have less possibility of occurrence of side effects than known compounds, and show a better therapeutic effect against pollakiuria or urinary incontinence, so that they can be used as excellent therapeutic or prophylactic agents for pollakiuria or urinary incontinence.
本发明提供了以下式子所代表的苄基胺衍
生物及其药学上可接受的酸加成盐,以及含有该衍
生物或其药学上可接受的酸加成盐的制药组合物,以及用于治疗或预防频尿或尿失禁的治疗剂或预防剂,该治疗剂或预防剂含有该衍
生物或其药学上可接受的酸加成盐。本发明的苄基胺衍
生物及其药学上可接受的酸加成盐比已知化合物的副作用发生可能性更小,并且对于频尿或尿失禁具有更好的治疗效果,因此可以作为优秀的治疗或预防频尿或尿失禁的治疗剂或预防剂。