Patent ID: 8563571

Claim:
A form of oxymorphone HCl selected from the group consisting of Form B, Form C, Form D, Form F, Form G, Form H, Form J, Form K, Form L and Form M; wherein: Form B has pXRD °2θ peaks at about 7.98, about 9.85, about 10.68, about 11.55 and about 14.70; Form C has pXRD °2θ peaks at about 7.83 and about 12.31; Form D has pXRD °2θ peaks at about 6.96, about 10.55, about 12.34 and about 15.03; Form F has pXRD °2θ peaks at about 9.78, about 10.71, about 11.06 and about 12.03; Form G has pXRD °2θ peaks at about 8.12, about 9.88, about 13.27 and about 13.79; Form H has pXRD °2θ peaks at about 6.60, about 7.91 and about 11.30; Form J has pXRD °2θ peaks at about 5.19, about 5.50, about 6.02 and about 11.07; Form K has pXRD °2θ peaks at about 8.08, about 12.48 and about 12.89; Form L has pXRD °2θ peaks at about 9.58, about 10.20 and about 12.56; and Form M has pXRD °2θ peaks at about 5.70, about 11.44 and about 13.47.