Polymorphic Forms Of Naltrexone

摘要

This invention relates to the discovery of novel polymorphic forms of naltrexone, including solvates, hydrates, anhydrous and other crystalline forms and combinations thereof. These novel forms of naltrexone impart advantages in pharmaceutical formulations incorporating them, including sustained release, or long acting, formulations.

主权项

1. A polymorphic form of naltrexone benzyl alcohol solvate which is characterized by an X-ray powder diffraction with a characteristic peak at about 5-6° (2θ).