how long after drinking senna do you have a bowel movement
Little is known about the safety of long-term intake of senna tea. As such, the National Institutes of Health (NIH) warns against using senna for more than two weeks. Taking senna for longer than two weeks may lead to dysfunction in the bowels, according to the NIH. Additionally, long-term use of senna may increase your risk of muscle weakness, liver damage, and heart function disorders.