SPL Set ID: 0692252e-4cc6-4f16-8a54-aeacd59c3143

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 and dimethylformamide. 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: 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 equivalent (33 mg, 66 mg, and 99 mg as cincalcet hydrochloride salt, respectively). Inactive Ingredients The following are the inactive ingredients in cinacalcet tablets: pre-gelatinized starch, microcrystalline cellulose, crospovidone, colloidal silicon dioxide, magnesium stearate, hypermellose, polyethylene glycols, lactose monohydrate, titanium dioxide, triacetin, ferric oxide yellow, FD&C blue #2 and carnauba wax. Cinacalcet-Structure