Irritable Bowel Syndrome - I have chronic loose bowels and wonder if a medication that I'm taking may be the caus e?Medications I am taking: Pradaxa 150mg, Docusate Sodium 100mg., stopped by myself. Ezetamine 10 mg., Rabeprazole20mg., Astorvastatin 40mg., Satalol HCL 160 mg., Multi Vitamin.