Hi, my 9 boy had non-withholding constipation and has been on 17.5ml of Senna for the past 5 years. (As an aside I've just seen other posts and I wish someone had told me at the beginning of this journey to relax because its takes years and years for the bowels to mend. Find a dose that works and stop fighting to bring your child off early - it was Consultants at Great Ormond St who said this and I wish someone had told me early on!)... anyway.. now to bring my boy off and I can't find a useful programme to do it. We'll try reducing gradually but I'd love to know anyone else's experience.