My doc just prescribed Nulev for the 'trapped gas' I get. I get what I call a bubble that rumbles in my gut and hurts like the dickens, but I can't relieve myself of the gas. He prescribed Nulev to be taken as follows: 1-2 tabs 30 ,in before meals 3X a day or even 3-4 hours as needed for pain. Anyone used this or heard of it? Any help...side effects? nogo