Are you getting to the screen with the groups? It's on that page but you may need to scroll down a bit.
I worked on a unit where we looked after and prepared patients for their colonoscopy and we gave them Picolax. Sometimes it took a couple of doses until anything happened, sometimes the effect was immediate and they barely had time to put the glass down, and sometimes there was a trail of poo to the toilets and an explosion all over its walls. So now when a patient is embarrassed by their incontinence I can honestly and truthfully say that I've seen much worse