Certain medications can improve your chances of passing a stone if you are experiencing an active stone episode. The most commonly used medication is tamsulosin (Flomax). Other similar medications used for this purpose include alfuzosin, nifedipine, doxazosin, and terazosin. In patients with stones, these medications relax the muscles in the ureter, allowing the stones to more easily and quickly pass.
How well do they work?
In studies of patients taking these medications or placebo (sugar pill), those on the medications were 1.45 times more likely to successfully pass their stone. They also required less pain medication and passed their stones more quickly with fewer return trips to the hospital than patients taking placebo.