The invention relates to crystalline salts of isobutyric acid(1R*,2R*,4R*)-2-(2-{[3-(4,7-dimethoxy-1H-benzoimidazol-2-yl)-propyl]-methyl-amino}-ethyl)-5-phenyl-bicyclo[2.2.2]oct-5-en-2-yl ester, processes for the preparation thereof, pharmaceutical compositions containing said crystalline salts, and their use as medicaments, especially as calcium channel blockers.本發明係關於一種異丁酸(1R*,2R*,4R*)-2-(2-{[3-(4,7-二甲氧基-1H-苯并咪唑-2-基)-丙基]-甲基-胺基}-乙基)-5-苯基-二環[2.2.2]辛-5-烯-2-基酯之結晶鹽、其製備方法、含有該等結晶鹽之醫藥組合物、及其作為藥劑,尤其作為鈣通道阻斷劑之用途。(無元件符號說明)