Severe, unexplained abdominal pain together w/ symptoms-like fever, nausea, vomiting, changes in bowel movement, abdominal tenderness, decreased BP, fainting or blood in stool. Narrow-angle glaucoma, patients susceptible to intestinal urinary outlet obstructions & in those inclined to tachyarrhythmia. Fructose intolerance, galactose intolerance eg, galactosemia, Lapp lactase deficiency or glucose-galactose malabsorption. Patients on a controlled Na diet. Pregnancy & lactation.