SPL Set ID: bac9ca81-db70-41aa-82af-6c5bb8496846

Rivastigmine tartrate is a reversible cholinesterase inhibitor and is known chemically as (S)-N-Ethyl-N-methyl-3-[1-(dimethylamino)ethyl]-phenyl carbamate hydrogen-(2R,3R)-tartrate. Rivastigmine tartrate is commonly referred to in the pharmacological literature as SDZ ENA 713 or ENA 713. It has a molecular formula of C 14 H 22 N 2 O 2 • C 4 H 6 O 6 (hydrogen tartrate salt–hta salt) and a molecular weight of 400.43 g/mol (hta salt). Rivastigmine tartrate is a white to off-white, fine crystalline powder that is very soluble in water, soluble in ethanol and acetonitrile, slightly soluble in n-octanol and very slightly soluble in ethyl acetate. The distribution coefficient at 37°C in n-octanol/phosphate buffer solution pH 7 is 3. Rivastigmine tartrate capsules contain rivastigmine tartrate, USP, equivalent to 1.5 mg, 3 mg, 4.5 mg, and 6 mg of rivastigmine base for oral administration. Inactive ingredients are magnesium stearate, microcrystalline cellulose, and colloidal silicon dioxide. Each hard-gelatin capsule contains gelatin, titanium dioxide, D & C Red # 28 (1.5 mg), D & C Yellow # 10 (1.5 mg), FD & C Yellow # 6 (1.5 mg, 3 mg, 6 mg), FD & C Red # 40 (6 mg), red iron oxide (4.5 mg, 6 mg) and yellow iron oxide (4.5 mg, 6 mg). The imprinting ink contains shellac, dehydrated alcohol, butyl alcohol, propylene glycol, strong ammonia solution, potassium hydroxide and black iron oxide. structure