Study to Assess the Efficacy and Safety of Rifaximin Administered BID in the Treatment of Patients With Diarrhea-Associated Irritable Bowel Syndrome

Long Island Clinical Research, Great Neck

New York Center for Clinical Research, Lake Success

Chevy Chase Clinical Research, Chevy Chase

Capital Gastroenterology Consultants, PA, Silver Springs

Maryland Clinical Trials, Severna Park

Digestive Disorders Associates, Annapolis

Washington County Hospital, Hagerstown

Internal Medicine Associates, Danville

Bethany Medical Center, High Point

Vital re:Search, Greensboro

University of North Carolina, Chapel Hill

Wake Research Associates, Raleigh

Rocky Mount

Carolina Research, Greenville

Charlotte Gastroenterology & Hepatology, Charlotte

Hanover Medical Specialists, PA, Wilmington

East Carolina Gastroenterology, Jacksonville

Asheville Gastroenterology Associates, Asheville

Columbia Gastroenterology Associates, Columbia

Borland-Groover Clinic, Jacksonville

University Clinical Research, DeLand

Shafran Gastroenterology, Winter Park

Research Consultants Group, Hialeah

Miami Research Associates, Miami

Florida Medical Clinic, Zephyrhills

Clinical Research of West Florida, Clearwater

Advanced Gastroenterology Associates, Palm Harbor

ClinSearch, Chattanooga

Holston Valley Physicians, Kingsport

Regional Research Institute, Jackson

Digestive Health Specialists, PA, Tupelo

Gastrointestinal Associates, PA, Jackson

Consultants for Clinical Research, Cincinnati

Digestive Health Network, Cincinnati

Wells Institute for Health Awareness, Kettering

GI & Liver Diseases Consultants, Dayton

Community Clinical Research Center, Anderson

Indianapolis Gastroenterology Research Foundation, Indianapolis

Henry Ford Hospital, Chesterfield

Gastrointestinal Clinic of Quad Citites, Davenport

Wisconsin Center for Advanced Research, Milwaukee

Rockford Gastroenterology, Rockford

Specialist in Gastroenterology, St Louis

Gastroenterology and Hepatology, Kansas City

Center for Digestive & Liver Diseases, Inc., Mexico

Gastroenterology Specialities, Lincoln

Oklahoma Foundation for Digestive Research, Oklahoma City

Digestive Health Specialists, PA, Oklahoma City

Austin Gastroenterology, Austin

University of Utah School of Medicine, Salt Lake City

Advanced Research Institute, Ogden

Mayo Clinic Scottsdale, Scottsdale

Premeire Pharmaceutical Research, Tempe

West Gastroenterology Medical Group, Los Angeles

Beverly Hills Gastroenterology, Los Angeles

Medical Associates Research Group, San Diego

Lovelace Scientific Resources, Irvine

Advanced Clinical Research Institute, Anaheim

West Hills Gastroenterology Associates, PC, Portland

Northwest Gastroenterology Associates, Bellevue

North Pacific Clinical Research, Redmond

Spokane Digestive Disease Center, Spokane

Gastroenterology Associates of Fairfield County, Bridgeport

Connecticut Gastroenterology Institute, Bristol

Litchfield County Gastroenterology Associates, LLC, Torrington

University of Kansas Medical Center, Kansas City

Coastal Research Associates, Braintree