title: [A novel therapeutic drug: ramelteon].
abstract: Current treatment of insomnia with hypnotics, GABA(A) receptor modulators, induces various side effects, including cognitive impairment, motor disturbance, dependence, tolerance, hang-over, and rebound insomnia. Ramelteon (Rozerem) is an orally active, highly selective melatonin MT1/MT2 receptor agonist. Unlike the sedative hypnotics that target GABA(A) receptor complexes, ramelteon is a chronohypnotic that acts on the melatonin MT1 and MT2 receptors, which are primarily located in the suprachiasmatic nucleus. Ramelteon has demonstrated sleep-promoting effects in clinical trials, and coupled with its favorable safety profile and lack of abuse potential or dependence, this chronohypnotic provides an important treatment option for insomnia.
authors.affiliation: Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited.
authors.forename: Masaomi
authors.initials: M
authors.lastname: Miyamoto
mesh_terms: D006801:Humans; D007192:Indenes / Q000627:therapeutic use*; D044122:Receptor, Melatonin, MT1 / Q000819:agonists*; D044123:Receptor, Melatonin, MT2 / Q000819:agonists*; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy*
chemical_list: D007192:Indenes; D044122:Receptor, Melatonin, MT1; D044123:Receptor, Melatonin, MT2; C495910:ramelteon