SPL Set ID: c2075dd1-e33c-4438-95f8-1897f0e1f61a

Colesevelam hydrochloride is a non-absorbed, polymeric, lipid-lowering agent for oral administration. Colesevelam hydrochloride is a high-capacity bile acid-binding molecule. Colesevelam hydrochloride is poly(allylamine hydrochloride) cross-linked with epichlorohydrin and alkylated with 1-bromodecane and (6-bromohexyl)-trimethylammonium bromide. The chemical name (IUPAC) of colesevelam hydrochloride is 1-Hexaminium, N,N,N-Trimethyl-6-(2-propenylamino)-, chloride, polymer with (chloromethyl) oxirane, 2-propen-4-amine and N-2-propenyl-1-decanamine, hydrochloride. The chemical structure of colesevelam hydrochloride is represented by the following formula: wherein (a) represents allyl amine monomer units that have not been alkylated by either of the 1-bromodecane or (6-bromohexyl)-trimethylammonium bromide alkylating agents or cross-linked by epichlorohydrin; (b) represents allyl amine units that have undergone cross-linking with epichlorohydrin; (c) represents allyl amine units that have been alkylated with a decyl group; (d) represents allyl amine units that have been alkylated with a (6-trimethyl ammonium) hexyl group, and m represents a number ≥100 to indicate an extended polymer network. A small amount of the amines are dialkylated and are not depicted in the formula above. No regular order of the groups is implied by the structure; cross-linking and alkylation are expected to occur randomly along the polymer chains. A large amount of the amines are protonated. The polymer is depicted in the hydrochloride form; a small amount of the halides are bromide. Colesevelam hydrochloride is hydrophilic and insoluble in water. Colesevelam hydrochloride tablets are white to off white, capsule shaped biconvex film coated tablet, imprinted with “L56” on one side and free from physical defects, containing 625 mg colesevelam hydrochloride. In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, diacetylated monoglycerides, hypromellose, magnesium stearate, microcrystalline cellulose. The tablets are imprinted using ammonium hydroxide, black iron oxide, propylene glycol, shellac. structure