592413 Disclosed is a crystalline hydrochloride salt of 4-[2-(2,4,6-trifluorophenoxymethyl)phenyl]piperidine characterized by a powder x-ray diffraction pattern comprising diffraction peaks at 2 Theta values of 4.44+-0.20, 10.22+-0.20, 17.16+-0.20, 5 and 21.78+-0.20. Also disclosed are pharmaceutical compositions comprising the crystalline salt, processes and intermediates for preparing the crystalline salt, and methods of using the crystalline salt to treat diseases.