Zelnorm hasn't been established in the effectiveness in men with IBS HOWEVER it is prescribed to both men and women for chronic constipation. Zelnorm actually communicates with the nerves and muscles in your intestines and works like serotonin.
I personally had an awful effect when I took Zelnorm many many years ago however many people get relief from it, I just wasn't one of those. I am on a fiber/Miralax regimen that is actually working great for me and I hope it lasts a long long time. I don't particularly care for Citrucel being a synthetic fiber supplement however I do prefer the psyllium that I get from Metamucil.
I also drink plenty of water and I notice that makes a huge difference for me. If I don't, my BM tend to be dry and takes longer transit time.
Co-Moderator ~ IBS Forum
Dx: IBS 1989, Diverticulosis 2004, Idiopathic Acute Colitis 2006, UCTD 2007 (Lupus? Sjogren's? overlap?)
Meds: Plaquenil 400mg, Chlorzoxazone 500mg, Lyrica 50mg, Protonix 40mg, Naproxen 1000mg, Xanax XR 2mg, Miralax 17g, Supplements