SPL Set ID: 3dc4980c-8062-4239-a860-63888cabee46

Allopurinol is known chemically as 1,5-dihydro-4H-pyrazolo [3,4- d ]pyrimidin-4-one. It is a xanthine oxidase inhibitor which is administered orally. It is available in 100 mg and 300 mg strengths. The 100mg tablets contain the inactive ingredients lactose, magnesium stearate, potato starch, and povidone. The 300mg tablets contain the inactive ingredients lactose, magnesium stearate, corn starch, and povidone. Its solubility in water at 37°C is 80.0 mg/dL and is greater in an alkaline solution. Allopurinol has the following structural formula: