SPL Set ID: 07d43bf6-a695-453a-a5c7-9581effe585c

Risperidone Tablets, USP contains risperidone, an atypical antipsychotic belonging to the chemical class of benzisoxazole derivatives. The chemical designation is 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl] ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one. Its molecular formula is C 23 H 27 FN 4 O 2 and its molecular weight is 410.49. The structural formula is: Risperidone is a white or almost white powder. It is practically insoluble in water, freely soluble in methylene chloride, sparingly soluble in alcohol. It dissolves in dilute acid solutions. Risperidone Tablets, USP are available in 0.25 mg (dark yellow), 0.5 mg (Reddish brown), 1 mg (white) strengths, 2 mg (pink), 3 mg (yellow) and 4 mg (green) strengths. Each tablet for oral administration contains the following inactive ingredients: Anhydrous Lactose, Sodium Lauryl Sulfate, Microcrystalline Cellulose (101), Colloidal Silicon Dioxide, Sodium Starch Glycolate (Type A), Magnesium Stearate, HPMC 2910/ Hypromellose, Macrogol/ PEG (MW 400), Macrogol/ PEG (MW 8000), Titanium Dioxide. Also, the tablet contains Polyvinyl Alcohol Part Hydrolyzed (used for 0.25, 0.5, 2, 3, 4 mg tablets), Macrogol/ PEG (MW 3350) (used for 0.25, 0.5, 2, 3, 4 mg tablets), Talc (used for 0.25, 0.5, 2, 3, 4 mg tablets), D&C Yellow #10 Aluminium Lake (used for 0.25, 4 mg tablets), FD&C Yellow #6/ Sunset Yellow FCF Aluminium Lake (used for 0.25, 2, 4 mg tablets), Iron Oxide Red (used for 0.5 mg tablets), Lactose Monohydrate, Triacetin & Stearic Acid (used for 1 mg tablets), FD&C Red #40/Allura Red AC Aluminum Lake (used for 2 mg tablets) , Iron Oxide Yellow (used for 3 mg tablets) and FD&C Blue #1/ Brilliant Blue FCF Aluminium Lake (used for 4 mg tablets). Chemical Structure