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  • Title: Ultra-low-dose early night ramelteon administration for the treatment of delayed sleep-wake phase disorder: case reports with a pharmacological review.
    Author: Shimura A, Kanno T, Inoue T.
    Journal: J Clin Sleep Med; 2022 Dec 01; 18(12):2861-2865. PubMed ID: 35929592.
    Abstract:
    UNLABELLED: Delayed sleep-wake phase disorder (DSWPD) is a common circadian sleep-wake phase disorders brings serious social impairment of the patients. Melatonin is the main medication option; however, it has not been approved in some countries, and over-the-counter melatonin is under poor quality control. The melatonin receptor agonist ramelteon might be a potential treatment option, but there are few reports regarding its use in DSWPD patients. Existing pharmacological and chronobiological studies suggest that an ultra-low dose of ramelteon in the early night is beneficial for DSWPD. Here, we present our clinical experience together with a pharmacological review and discussion. Twenty-three DSWPD patients, of whom 18 patients had a treatment history of a normal dose of ramelteon, were prescribed low-dose ramelteon (median: 0.571 mg, 1/14 of a tablet) to be taken in the early night (mean: 18:10). After the treatment, the mean sleep schedule was significantly advanced, and clinical symptoms were improved. CITATION: Shimura A, Kanno T, Inoue T. Ultra-low-dose early night ramelteon administration for the treatment of delayed sleep-wake phase disorder: case reports with a pharmacological review. J Clin Sleep Med. 2022;18(12):2861-2865.
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