added to the solution it was dried at 20 25 u00b0 c for 24 hours it was further dried at 38 u00b0 c for 48 hours without any filtration sample number 10 1 0 7 gram orlistat was dissolved in 0 7 ml methanol hexane of 0 7 ml was added to the solution it was dried at 20 25 u00b0 c for 24 hours it was further dried at 38 u00b0 c for 48 hours without any filtration sample number 13 1 0 7 gram orlistat was dissolved in 0 7 ml methanol water of 0 3 ml was added to the solution it was cooled at 0 5 u00b0 c for 1 hour filtered crystals were dried at 20 25 u00b0 c for 1 hour and at 38 u00b0 c for 1 hour sample number 14 1 0 7 gram orlistat was dissolved in 7 0 ml hexane crystals were filtered after 20 hours cooling at 0 5 u00b0 c drying was carried out at 20 25 u00b0 c for 1 hour and at 38 u00b0 c for 1 hour sample number 16 the melting points dsc and enthapy of the following orlistat samples were measured and presented in the following table the crystalline forms.