A natural or synthetic therapeutic agent having the property of inducing relaxation and varying degrees of depression of the central nervous system. The major types of sedatives are (1) chlorine substitution products (chloral hydrate, chlorobutanol); (2) ethanol derivatives (ethyl carbamate, hedonal); (3) specific aldehydes and ketones (paraldehyde, amylene hydrate), (4) barbituric acid derivatives (barbital, barbiturates). Sedatives are almost always prescription drugs.See Psychotropic Drug.
Qingdao Chengyuan Kaisheng Industry and Trade Co., Ltd. Chengyuan Kaisheng takes "integrity, innovation, cooperation and win-win" as its core values, and is committed to c.. Nanjing Freehoo Chemical Co., Ltd. Nanjing Freehoo Chemical Technology Co., Ltd. was founded in 2012. since then we have been committed to the resea.. NEM CHEMICAL CO.,LTD
NEM CHEMICAL CO.,LTD. (original name is Puyang MYJ Fine Chemical Co., Ltd. ) is high-tech compang co..