Dissolution of staghorn calculus associated with amiloride-hydrochlorothiazide, sulfamethoxazole and trimethoprim,...

We report a case of a large staghorn calculus of the right kidney that was treated with sulfamethoxazole and trimethoprim, and amiloride-hydrochlorothiazide. The patient, who had refused any surgical intervention, also elected to take ascorbic acid. Without any other treatment x-rays revealed dissolution of the staghorn calculus 8 weeks later.