what are the side effects of drinking senna tea?
['Abdominal pain or discomfort.', 'Cramps.', 'Diarrhea.', 'Electrolyte abnormalities, including low potassium (hypokalemia)', 'Excessive bowel activity.', 'Finger clubbing (long-term use)', 'Melanosis coli.', 'Nausea.']