Uroxatral, Uvadex, and Ultram are just a few of the many medicines that start with the letter U. Each of these medicines has a different purpose and is used to treat different conditions. Uroxatral is used to treat benign prostatic hyperplasia, a condition in which the prostate gland becomes enlarged. Uvadex is an immunostimulant that is used to treat skin cancer. Ultram is a pain reliever that is used to treat moderate to severe pain. There are many other medicines that start with the letter U, each with its own unique purpose. However, all of these medicines share one thing in common: they can help improve the quality of life for those who take them.