Senna tea addictive? How to restore peristalsis...

I noticed on another post that someone mentioned a concern about the Kleritea in the Colonix program being addictive/ causing laxative dependence in a first time cleanser.
Any other concerns about this? Anyone's other experiences on this and what did you do to restore peristalsis afterwards?
I am currently on the Colonix program now and just wondered if this is something I should be worried about.
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