This invention relates to a levotetrahydropalmatine citrate, its preparation method, and its applications, belonging to the field of
pharmaceutical technology. This invention provides a levotetrahydropalmatine citrate. Studies have shown that compared to other salt forms, the citrate form of levotetrahydropalmatine significantly improves its
solubility. Furthermore, research has confirmed that levotetrahydropalmatine citrate can significantly reduce
drug relapse preferences, with
efficacy comparable to or even better than the injectable form, without causing significant adverse reactions and exhibiting good safety. Simultaneously, the
sedative effect of levotetrahydropalmatine citrate is far superior to other salt forms. In addition, levotetrahydropalmatine citrate has therapeutic effects on sleep disorders, effectively shortening
sleep onset time, increasing
sleep duration, and improving
sleep quality. Therefore, the levotetrahydropalmatine citrate provided by this invention has broad application prospects in the preparation of drugs for
sedation, analgesia, treatment of sleep disorders, and treatment of
drug addiction.