Patent ID: 8618156
Filing Date: 2013-12-31
Classification: A61P,C07D

Abstract:
1. A method of treating pain in a patient diagnosed with a pain disorder comprising orally administering to the patient an effective amount of a pharmaceutical composition comprising at least one pharmaceutically acceptable additive or adjuvant and an active ingredient comprising a crystalline form of (1r,4r)-6′-fluoro-N,N-dimethyl-4-phenyl-4′,9′-dihydro-3′H-spiro[cyclohexane-1,1′-pyrano[3,4,b]indol]-4-amine having an X-ray powder diffraction pattern comprising characteristic peaks at about 18.3±0.2 degrees 2θ, at about 26.3±0.2 degrees 2θ, and at one or both of about 7.8±0.2 degrees 2θ and about 31.6±0.2 degrees 2θ.