Table 2.

Response rates for lubiprostone 12 wk phase III irritable bowel syndrome with constipation studies

	Lubiprostone	Placebo	P value
Overall responder	17.90%	10.10%	0.001
Month 1	10.80%	7.50%	0.078
Month 2	18.20%	11.40%	0.003
Month 3	22.00%	14.50%	0.003