She's right, Senna causes dependency according to many internet articles I read. The turkey rhubarb formula is meant to be taken 6-9 months, many articles said senna should not be taken for more than 2 weeks. I also get a pain in the right side of my colon when using this formula but rarely. Here is an article on Senna:
http://www.healthherbs.com/products/singleherbtinctures/3177.html
