constipation back

I'm a 30 year old women and have suffered from constipation back and forth for a while. My family talks about EVERYTHING, and one day my grandmother was talking about a new med her doc put her on for her constipation called Amitiza. I called my doctor ASAP because I've tried another drug, but I was tired of always having to stop it after a few months. I have tried everything from Senna to Miolax to Zelnorm to over the counter laxitives ... blah blah blah. 5 months ater I'm still on Amitiza and it's still working!