4-((1R,3S)-6-Chloro-3-phenylindan-1-yl)-1,2,2-trimethylpiperazine hydrogen succinate or hydrogen malonate, pharmaceutical compositions containing these salts and the medical use thereof, including for the treatment of schizophrenia and other psychotic disorders. Also described are methods for the preparation of 4-((1R,3S)-6-Chloro-3-phenylindan-1-yl)-1,2,2-trimethylpiperazine and medical uses thereof.4-((1R,3S)-6-氯-3-苯基二氫茚-1-基)-1,2,2-三甲基哌琥珀酸氫鹽或丙二酸氫鹽,含有這些鹽的醫藥組成物和其醫學用途,包括治療精神分裂症和其他精神病。也描述了製備4-((1R,3S)-6-氯-3-苯基二氫茚-1-基)-1,2,2-三甲基哌的方法和其醫學用途。