SPL Set ID: 1ce96b87-323d-40b6-a40b-32821e00d94c

Allopurinol is a xanthine oxidase inhibitor. It has the following structural formula: Allopurinol is known chemically as 1,5-Dihydro-4 H -pyrazolo[3,4- d ]pyrimidin-4-one and it has a molecular weight of 136.11 g/mol. Its solubility in water at 37°C is 80.0 mg/dL and is greater in an alkaline solution. It is a xanthine oxidase inhibitor which is administered orally. Each scored, white, round tablet contains 100 mg or 300 mg allopurinol, USP and the inactive ingredients colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn), sodium lauryl sulfate and sodium starch glycolate (potato). Allopurinol strucurak formula