SPL Set ID: 6039e036-c0aa-4249-af50-115f49ad758a
1 drug(s) with this SPL Set ID
Piroxicam Capsules USP is a nonsteroidal anti-inflammatory drug, available as maroon and blue #10 mg capsules and maroon #20 mg capsules for oral administration. The chemical name is 4-hydroxyl-2-methyl- N -2-pyridinyl-2 H -1,2,-benzothiazine-3-carboxamide 1,1-dioxide. The molecular weight is 331.35. Its molecular formula is C 15 H 13 N 3 O 4 S, and it has the following chemical structure. Piroxicam, USP occurs as a white or slightly yellow crystalline powder, soluble in methylene chloride, slightly soluble in ethanol and practically insoluble in water. It exhibits a weakly acidic 4-hydroxy proton (pKa 5.1) and a weakly basic pyridyl nitrogen (pKa 1.8). In addition to the active ingredient, each capsule contains corn starch, lactose monohydrate, magnesium stearate and sodium lauryl sulfate. The 10mg capsule shell contains FD&C Blue 1, FD&C Red 3, titanium dioxide, gelatin and water. The 20mg capsule shell contains FD&C Blue 1, FD&C Red 3, titanium dioxide, gelatin and water. The imprinting ink contains shellac, titanium dioxide and trace amount (less than 1 ppb) of potassium salts of potassium hydroxides. structural formula