olanzapine and samidorphan l malate - Generic Medications

LYBALVI is a combination of olanzapine, an atypical antipsychotic, and samidorphan (as samidorphan L-malate), an opioid antagonist. Olanzapine is 2-methyl-4-(4-methyl-1-piperazinyl)-10 H -thieno[2,3- b ][1,5]benzodiazepine. The molecular formula of olanzapine is: C 17 H 20 N 4 S and the molecular weight is 312.44 g/mol. It is a yellow crystalline powder and has pKa values of 7.80 and 5.44. The chemical structure is: Samidorphan L-malate is morphinan-3-carboxamide, 17-(cyclopropylmethyl)-4, 14-dihydroxy-6-oxo-, (2S)-2-hydroxybutanedioate. The molecular formula of samidorphan L-malate is C 21 H 26 N 2 O 4 • C 4 H 6 O 5 and the molecular weight is 504.54 g/mol. It is a white to off-white crystalline powder and has pKa values of 8.3 (amine) and 10.1 (phenol). The chemical structure is: LYBALVI is intended for oral administration and is available as film-coated, bilayer tablets in the following strengths: 5 mg/10 mg, 10 mg/10 mg, 15 mg/10 mg, and 20 mg/10 mg of olanzapine and samidorphan (equivalent to 13.6 mg of samidorphan L-malate). Inactive ingredients include colloidal silicon dioxide, crospovidone, lactose monohydrate, magnesium stearate, and microcrystalline cellulose. The film coating ingredients include hypromellose, titanium dioxide, triacetin, and color additives [iron oxide yellow (5 mg/10 mg); iron oxide yellow and iron oxide red (10 mg/10 mg); FD&C Blue No. 2/ indigo carmine aluminum lake (15 mg/10 mg); iron oxide red (20 mg/10 mg)]. Olanzapine Chemical Structure Samidorphan L-malate Chemical Structure