everyone is different.
my favorite combo that worked the best for me was benefiber, immodium, AND tincture of opium. What a cocktail. But it worked if I took dilengiently at specific times before eating and before sleep.
meta. or citra never did squat. lomotil made me loopy and also didn't do squat.
so message is.. everyone is different. Give something a fair go... and if it doesn't work try something else.
good luck