SAN FRANCISCO--(BUSINESS WIRE)--Napo Pharmaceuticals, Inc. (Napo) is pleased to announce the positive results of a successfully completed Phase 2 study of crofelemer for the treatment of hospitalized adult patients with mild to moderate acute watery diarrhea conducted by its partner Glenmark Pharmaceuticals Ltd. (Glenmark - BSE: 532296 NSE: GLENMARK).