My vet recently prescribed Propulsid for Chester, one of my furchildren. He was totally blocked and his colon was filled. He had 2 enemas last week and is now home. However, in order for his colon to recover and regain elasticity, he needs Propulsid-and it's apparently been taken off the market. (My vet was wise enough to see it coming and had ordered it) Does anybody know where to get it, or a substitute? Thanks for any help.