Belsomra tablets contain suvorexant, a highly selective antagonist for orexin receptors OX1R and OX2R.
Suvorexant is described chemically as: [(7R)-4-(5-chloro-2-benzoxazolyl) hexahydro-7-methyl-1H-1,4-diazepin-1-yl][5-methyl-2-(2H-1,2,3-triazol2-yl)phenyl]methanone Its empirical formula is C23H23ClN6O2 and the molecular weight is 450.92. Its structural formula is:
Suvorexant is a white to off-white powder that is insoluble in water.
Each film coated tablet contains 5 mg, 10 mg, 15 mg, or 20 mg of suvorexant and the following inactive ingredients: polyvinylpyrrolidone/vinyl acetate copolymer (copovidone), microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, and magnesium stearate.
In addition, the film coating contains the following inactive ingredients: lactose monohydrate, hypromellose, titanium dioxide, and triacetin. The film coating for the 5 mg tablets also contains iron oxide yellow and iron oxide black, and the film coating for the 10 mg tablets also contains iron oxide yellow and FD&C Blue #1/Brilliant Blue FCF Aluminum Lake.
DOSAGE AND ADMINISTRATION
Use the lowest dose effective for the patient.
The recommended dose for BELSOMRA is 10 mg, taken no more than once per night and within 30 minutes of going to bed, with at least 7 hours remaining before the planned time of awakening. If the 10 mg dose is well-tolerated but not effective, the dose can be increased. The maximum recommended dose of BELSOMRA is 20 mg once daily.
Dosage Forms And Strengths
- 5 mg tablets are yellow, round, film-coated tablets with “5” on one side and plain on the other side.
- 10 mg tablets are green, round, film-coated tablets with “33” on one side and plain on the other side.
- 15 mg tablets are white, oval, film-coated tablets with the Merck logo on one side and “325” on the other side.
- 20 mg tablets are white, round, film-coated tablets with the Merck logo and “335” on one side and plain on the other side.
BELSOMRA tablets, 10 mg, are green, round, film-coated tablets, with “33” on one side and plain on the other side. They are supplied as follows: NDC 0006-0033-30 unit-of-use blisters of 30
Storage And Handling
Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F), [see USP Controlled Room Temperature]. Store in the original package until use to protect from light and moisture