SPL Set ID: 5014a2d7-e0d3-4e84-9a3e-c90b398b8c6c

Glipizide extended-release tablets are an oral sulfonylurea. The Chemical Abstracts name of glipizide is 1-cyclohexyl-3-[[p-[2-(5-methylpyrazinecarboxamido) ethyl] phenyl]sulfonyl]urea. The molecular formula is C 21 H 27 N 5 O 4 S; the molecular weight is 445.55; the structural formula is shown below: Glipizide, USP is a white to off-white powder, with a pKa of 5.9. It is freely soluble in dimethylformamide, soluble in 0.1N sodium hydroxide and slightly soluble in methylene chloride. Glipizide extended-release tablets are formulated as a once-a-day extended-release tablet for oral use and are designed to deliver 2.5 mg, 5 mg, or 10 mg of glipizide. Each glipizide extended-release tablet contains the following inactive ingredients: acetyltributyl citrate, colloidal silicon dioxide, hydroxyethyl cellulose, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, methacrylic acid copolymer and polyethylene glycol. Additionally each 2.5 mg tablet contains: FD&C yellow #5 aluminum lake and titanium dioxide. Each 5 mg tablet contains: FD&C yellow #6 aluminum lake and titanium dioxide. The tablet is imprinted with opacode black S-1-17823 which contains following ingredients: ammonium hydroxide, iron oxide black, isopropyl alcohol, n-butyl alcohol, propylene glycol and shellac. System Components and Performance Glipizide extended-release tablets are formulated as once-a-day extended-release tablets and are designed to deliver glipizide at a controlled rate over approximately 20 hours. The dosage form is comprised of a hydrophilic cellulose polymer matrix tablet containing the drug which is surrounded by a seal coat followed by an enteric coating system. The enteric coat is insoluble in the low pH environment of the stomach. As the tablet passes through the stomach and enters in the higher pH environment of the small intestine, the enteric coating dissolves and/or erodes to expose the polymer matrix tablet which swells and releases the drug at a controlled rate via diffusion and/or erosion. Glipezide USP