The only laxative that I take when need is Milk of Magnesium. My doctor said is safe for long term use, it won't kill you.
Last night I just started taking Magnesium Calm(Mag. citrate)powder and went this morning more than usual, you should try it.
I don't take any fiber supplement b/c they always block me up more.
Did you have all the test necessary to rule out any pelvic organ dysfunctions or colonic inertia? Try this website www.constipation.net/Articles.html? It has great info about chronic C.
Hope this helps.
Blessings, Abi
-------------------- The joy of the Lord is my strength !