Amitiza
"I've had chronic constipation all my adult life. Tried Linzess, it worked for a month then stopped. Doctor started me on Amitiza (24 mg) and it is a miracle. I've been on for four months now. After a life of 7-10 days between bowel motions, I now go comfortably 3-4 times per week. No pain, very little gas. It's a miracle for me."