Novel salts formed between two active drug substances, wherein the first drug substance is an NSAID drug substance containing a carboxylic acid group and the second drug substance contains an amine group and is a local anaesthetic or selected from the group consisting of non-opioid analgesics, antipsychotics, antidepressants, narcotic antagonists and local anaesthetics. Such salts that are poorly soluble in tissue fluids are feasible for injectable prolonged release formulations where the NSAID additionally to minimize pain and tissue reaction at the site of administration.
两种活性药物物质之间形成的新型盐,其中第一种药物物质是一种含有
羧酸基团的非甾体抗炎药物质,第二种药物物质含有胺基团,是
局部麻醉剂或选自非阿片类
镇痛药、
抗精神病药、抗抑郁药、麻醉拮抗剂和
局部麻醉剂的药物组。这种在组织液中溶解度较低的盐适用于可注射的缓释制剂,其中非甾体抗炎药物质可进一步减轻注射部位的疼痛和组织反应。