The Effect of Tegaserod on Patterns of Flow in the Small Bowel of Patients With Irritable Bowel Syndrome (IBS)

Inclusion Criteria:

• Female 18 and older
• IBS-C patients diagnosed on the basis of Rome II criteria
• Ability to comply with the requirements of the entire study

Exclusion Criteria:

• Evidence of structural abnormality of the gastrointestinal tract or disease/conditions.
• Patients with previous gastrointestinal surgery other than appendectomy or cholecystectomy.
• Evidence of cathartic colon or a history of laxative use, that in the investigator's opinion is consistent with severe laxative dependence such that the patient is likely to require or use laxatives during the study

Other protocol-defined inclusion/exclusion criteria may apply.