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Sedative-hypnotic drugs (SHDs) used for insomnia are recommended for short-term use owing to concerns regarding abuse and dependence. Nevertheless, drug discontinuation is challenging owing to rebound insomnia that occurs when the SHD is ceased. Therefore, a strategy is required to reduce or discontinue SHDs, while minimizing rebound insomnia.The present report discusses the cases of a 72-year-old man and 27-year-old man with insomnia. Both patients had been taking SHDs for more than 2 months.Both patients were diagnosed with primary insomnia.After 2 weeks of classical conditioning (CC) using Hwangryunhaedok-tang (HHT), both patients succeeded in tapering SHD; the Korean version of the insomnia severity index of patient 1 dropped from 14 to 5, and that of patient 2 dropped from 28 to 11. In the final follow-up, the index dropped to 2 and 3, respectively.The CC, a concept emerging in psychology, could be a new strategy for tapering drugs. In this case, SHDs, which had been taken for a long time, were successfully reduced or discontinued through CC using HHT. Herbal medicine such as HHT is selected as a neutral stimulus for CC because the risk of rebound phenomenon is low as the compounds of herbal medicine have high structural similarities with human metabolites. Both patients in this study reported no particular challenges when HHT was discontinued. However, further studies are needed that will assist in tapering anticonvulsants or steroids as well as SHDs. |
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