SPL Set ID: 26f8c3bc-4402-e92c-e063-6294a90a9ad7

The active ingredient in Rabeprazole Sodium delayed-release tablets is rabeprazole sodium, which is a proton pump inhibitor. It is a substituted benzimidazole known chemically as 2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]-methyl]sulfinyl]-1 H –benzimidazole sodium salt. It has an empirical formula of C 18 H 20 N 3 NaO 3 S and a molecular weight of 381.42. Rabeprazole sodium is an off white to yellowish white powder. It is very soluble in water and methanol, freely soluble in ethanol, chloroform, and ethyl acetate and insoluble in ether and n-hexane. The stability of rabeprazole sodium is a function of pH; it is rapidly degraded in acid media, and is more stable under alkaline conditions. The structural figure is: Figure1 Rabeprazole Sodium delayed-release tablets are available for oral administration as delayed-release, enteric-coated tablets containing 20 mg of rabeprazole sodium. Inactive ingredients of the 20 mg tablet are diacetylated monoglycerides, ethylcellulose, hydroxypropyl cellulose, hypromellose phthalate, light magnesium oxide, low substituted hydroxypropyl cellulose, magnesium stearate, mannitol, talc, and titanium dioxide. Iron oxide yellow is the coloring agent for the tablet coating. The ink pigment contains ammonium hydroxide, black iron oxide, propylene glycol, and shellac glaze (modified) in SD-45. Structural Image