This invention relates to novel (1R,2R,3S,5S)-2-methoxymethyl-3-(3,4-dichlorophenyl)-8-azabicyclo[3.2.1]o- ctane tartrate salts, such as L-tartrate monohydrates and anhydrates. The salts are useful as monoamine neurotransmitter re-uptake inhibitors. In other aspects the invention relates to the use of these salts in a method for therapy and to pharmaceutical compositions comprising the salts of the invention.