SPL Set ID: 734eb776-4be0-4808-834b-0d8b0f9e021e

UZEDY contains risperidone, an atypical antipsychotic. Risperidone belongs to the chemical class of benzisoxazole derivatives. The chemical designation is 3-[2-[4-(6-fluoro-1,2-benzoxazol-3-yl) piperidin-1yl] ethyl]-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a] pyrimidin-4-one. Its molecular formula is C 23 H 27 FN 4 O 2 and its molecular weight is 410.5 g/mol. The structural formula is: Risperidone is a white to off-white powder. It is practically insoluble in water and soluble in methanol and 0.1 N HCl. It has the following pKa values: 8.28 (piperidine moiety) and 3.12 (pyrimidine moiety). UZEDY (risperidone) extended-release injectable suspension, for subcutaneous use, is a sterile, preservative free, white to off-white opaque viscous suspension. It is available in the following strengths (and deliverable volumes from a single-dose prefilled syringe): 50 mg (0.14 mL), 75 mg (0.21 mL), 100 mg (0.28 mL), 125 mg (0.35 mL), 150 mg (0.42 mL), 200 mg (0.56 mL), and 250 mg (0.7 mL). The inactive ingredients include dimethyl sulfoxide (45% w/w), methoxy-poly(ethylene glycol)- co -poly(D,L-lactide) (15% w/w), and poly(D,L-lactide)- co -poly(ethylene glycol)- co -poly(D,L-lactide) (10% w/w). image