A nasal preparation comprising a compound represented by the formula:
wherein Ring A is an optionally substituted 5- or 6-membered aromatic heterocyclic ring, Ring B is an optionally substituted 5- or 6-membered aromatic homocyclic or heterocyclic ring, R1 is a hydrogen atom, a hydroxyl group or a lower alkyl group, and n is 0 or 1, which has an Na—H exchange inhibiting activity, or a salt thereof exhibits excellent bioabsorbability and an Na—H exchange inhibiting activity superior to that of an oral preparation, thus being useful as a prophylactic and/or therapeutic agent for ischemic heart diseases such as myocardial infarct and arrhythmia.
一种鼻用制剂,包括下式所表示的化合物:
其中,环A为可选取代的5或6成员芳香杂环环,环B为可选取代的5或6成员芳香同环或杂环环,R1为氢原子、羟基或较低烷基,n为0或1,该化合物具有Na-H交换抑制活性,或其盐表现出优异的
生物吸收性和优于口服制剂的Na-H交换抑制活性,因此可用作缺血性心脏病如心肌梗塞和心律失常的预防和/或治疗剂。