Dear Ben: I have found that two herbal laxatives work very well for me, both available at health food stores: Senna and Cascara Sagrada. I have checked them with my neurologist and she was OK with them. In fact, she is now prescribing them to others of her patients. The biochemist that I consult in Seattle tells me that Vitamin C in large doses works well too. He has me taking a powdered Vitamin c from a source in California; I can provide it if you like(that information is at home and I am at the office). It is like Alka Seltzer, fizzy in water. I take a teaspoon morning and night. Bob Newbrough