The present application relates to crystalline salts of 7-[4-(4-naphthalen-l- yl-piperazin-l-yl)-butoxy]-3,4-dihydro-lH-[l,8]naphthyridin-2-one, process for preparation of the crystalline salts, pharmaceutical compositions containing the crystalline salts, and use of the crystalline salts for treating certain disorders or conditions.
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