SPL Set ID: b71d56b8-9c03-4347-8752-8a04825a1add

Cinacalcet tablets contain the hydrochloride salt of the active ingredient cinacalcet, a positive modulator of the calcium sensing receptor. The empirical formula for cinacalcet is C 22 H 22 F 3 N⋅HCl with a molecular weight of 393.9 g/mol (hydrochloride salt) and 357.4 g/mol (free base). It has one chiral center having an R-absolute configuration. The R-enantiomer is the more potent enantiomer and has been shown to be responsible for pharmacodynamic activity. The hydrochloride salt of cinacalcet is a white to off-white, powder that is soluble in methanol, 95% ethanol and slightly soluble in water. Cinacalcet tablets are formulated as light-green, film-coated, oval-shaped tablets for oral administration in strengths of 30 mg, 60 mg, and 90 mg of cinacalcet as the free base equivalent (33 mg, 66 mg, and 99 mg as the hydrochloride salt, respectively). The hydrochloride salt of cinacalcet is described chemically as N-[1-(R)-(-)-(1-naphthyl)ethyl]-3-[3-(trifluoromethyl)phenyl]-1-aminopropane hydrochloride and has the following structural formula: Inactive Ingredients The following are the inactive ingredients in cinacalcet tablets: Lactose monohydrate, microcrystalline cellulose (GR 101 and GR 102), crospovidone, hydroxypropyl cellulose, magnesium stearate. In addition polyvinyl alcohol, titanium dioxide, polyethylene glycol, talc, iron oxide yellow, FD&C blue #2/Indigo carmine AL are included in the film coating.