I too am experiencing the wonders of Rituxan. I have a very rare autoimmune disease called Esophageal Lichen Planus. I was getting endoscopies with dilation every 4 months to keep my esophagus open enough to be able to eat without choking. I've had 2 courses of infusions over a period of one year and am due in Nov for my third. I haven't had an endoscopy since April. I also believe that Rituxan is a miracle drug!