Subject self assessment of improvement between treatment groups using the IBS Global Improvement Scale; comparison of safety and tolerability between treatment groups with respect to adverse events & laboratory abnormalities. 12 Weeks [clinicaltrials_resource:2913477308900c8636ae808b3312b5c3]

Subject self assessment of improvement between treatment groups using the IBS Global Improvement Scale; comparison of safety and tolerability between treatment groups with respect to adverse events & laboratory abnormalities. 12 Weeks [clinicaltrials_resource:2913477308900c8636ae808b3312b5c3]