申请人:Franklin Richard
公开号:US20090186832A1
公开(公告)日:2009-07-23
Prodrugs of meptazinol and other phenolic analgesics exhibiting low oral bioavailability with amino acids or lower peptides, pharmaceutical compositions containing such prodrugs and a method for providing pain relief with such prodrugs are provided. In addition, the present invention relates to methods for increasing the oral bioavailability of a phenolic analgesic. The method comprises orally administering a phenolic analgesic prodrug, wherein the phenolic analgesic is bound to an amino acid or peptide via a carbamate linkage, to a subject in need thereof. Prodrugs having side chains of valine, leucine, isoleucine and glycine amino acids and mono-, di- and tripeptides thereof are preferred.
本发明提供了美托津诺尔及其他表现出口服生物利用度低的酚类镇痛剂的前药,其与氨基酸或较低的肽结合,以及含有这种前药的制药组合物和使用这种前药提供缓解疼痛的方法。此外,本发明还涉及提高酚类镇痛剂口服生物利用度的方法。该方法包括口服给予酚类镇痛剂前药,其中酚类镇痛剂通过氨基酸或肽的氨甲酰基链接结合到前药中,并给予需要的受试者。具有缬氨酸、亮氨酸、异亮氨酸和甘氨酸氨基酸和其单、二、三肽的侧链的前药是首选。