Patent ID: 6387925
Filing Date: 2002-05-14
Classification: A61P,C07D

Abstract:
The crystalline forms of (2-Benzhydryl-1-azo-bicyclo[2.2.2]oct-3-yl)-(5-isopropyl-2-methoxybenzyl)-amine citrate having the formula wherein said crystalline form is selected from the group consisting of(a) a stable nonhygroscopic citrate anhydrous form exhibiting the X-ray powder diffraction pattern PeakNo.123456789D17.6110.958.787.967.376.806.575.875.46space(b) a citrate monohydrate, Form A polymorph exhibiting the X-ray powder diffraction pattern PeakNo.123456789D17.7410.939.658.256.715.985.675.454.83spaceand(c) A citrate monohydrate, Form B polymorph exhibiting the X-ray powder diffraction pattern PeakNo.123456789D12.311.36.56.95.94.34.13.53.2space