hydrochloride form ii as prepared by the new methods disclosed herein may be used in pharmaceutical compositions that are particularly useful for the treatment of depression obesity chemical dependencies or addictions premature ejaculation obsessive compulsive disorder and panic disorder such compositions comprise at least one of the new crystalline forms of sertraline hydrochloride with pharmaceutically acceptable carriers and or excipients known to one of skill in the art for example these compositions may be prepared as medicaments to be administered orally parenterally rectally transdermally bucally or nasally suitable forms for oral administration include tablets compressed or coated pills dragees sachets hard or gelatin capsules sub lingual tablets syrups and suspensions suitable forms of parenteral administration include an aqueous or non aqueous solution or emulsion while for rectal administration suitable forms for administration include suppositories with hydrophilic or hydrophobic vehicle for topical administration the invention provides suitable transdermal delivery systems known in the art and for nasal delivery there are provided suitable aerosol delivery systems known in the art suitable non toxic pharmaceutically acceptable carriers and or excipients will be apparent to those skilled in the art of pharmaceutical formulation and are discussed in detail in the tet entitled remington 39 s pharmaceutical science 17 th edition 1985 the contents of which are incorporated herein by reference obviously the choice of suitable carriers will depend on the exact nature of the particular dosage form e.