...is what was perscribed for me to help ease a...errr...digestive problem
A digestive problem? Constipation?

I used to suffer from this, and it caused no end of problems - poor circulation in my legs being the most serious one (because all of the hardened s**t presses against arteries). Anyway, the best way to deal with this is to eat lots of fruit. More fibre is good too - so nuts, beans, wholemeal bread, beer... anything that makes you fart basically.