Zolpidem salts having improved physical stability do not exhibit a melting endotherm corresponding to zolpidem free base when heated at 5° C./minute from about 25° C. to 250° C. The salts are generally easy to reproduce, even on an industrial scale and are easier to handle due to the increased stability than the known zolpidem tartrate. The zolpidem salts are typically pharmaceutically acceptable salts and can be used in formulating pharmaceutical compositions and in pharmaceutical uses; e.g. as a hypnotic.
The present invention provides pharmaceutical compounds and methods for preventing, ameliorating, or treating a mitochondrial disease by administering such compounds to a subject in need thereof. In some cases, the subject suffers from a mitochondrial disease or is predisposed to having a mitochondrial disease. The mitochondrial disease includes those associated with impairments to mitochondrial oxidative phosphorylation that can lead to vision loss or blindness.
Modified release formulations containing a hypnotic agent
申请人:——
公开号:US20030054041A1
公开(公告)日:2003-03-20
Hypnotic pharmaceutical compositions are made from pellets and exhibit a modified release. Zolpidem or a pharmaceutically acceptable salt thereof is a typical hypnotic. The pellets are preferably spherical and exhibit a dissolution profile that includes 60% of the hypnotic agent being release from the pellet not earlier than 5 minutes from the start of a specified in vitro dissolution test. Although the modified release profile can include 50% of the hypnotic agent being released not earlier than 15 minutes after the start of the dissolution test, the pellet preferably does not contain a release rate controlling excipient or coating. Instead, microcrystalline cellulose and the active constitute the majority of the pellet, e.g. 90% or more. Spherical pellets are also made by a convenient method that is applicable to any pharmaceutically active agent.