Compare Allopurinol vs. Uloric Head- to- head comparisons of medication uses, side effects, ratings, and more. Zyloprim ( allopurinol) Prescription only. Kidney stones can form while taking Zyloprim ( allopurinol), so you need to drink a lot of fluids to help prevent this.
Bosnia & Herzegowina. Of patients taking febuxostat at 40 or 80 mg daily, 45% and 67%, respectively, reached the primary endpoint compared with 42% of those taking allopurinol ( 200/ 300 mg daily).