申请人:Liang Sidney
公开号:US20070281957A1
公开(公告)日:2007-12-06
The present invention relates to novel crystalline polymorphic forms of levorphanol including hydrated, solvated, and non-hydrated (non-solvated) forms. The invention also describes methods of preparing the various polymorphic forms. The present invention also relates to pharmaceutical compositions containing crystalline polymorphs of levorphanol, as well as methods of relieving pain by administering the pharmaceutical compositions.
本发明涉及左旋吗啡的新型结晶多型形式,包括水合、溶剂化和非水合(非溶剂化)形式。该发明还描述了制备各种多型形式的方法。本发明还涉及含有左旋吗啡结晶多型的药物组合物,以及通过给药该药物组合物来缓解疼痛的方法。