Prune juice suppose to have laxative benefits for some. It doesn't do a thing for me in 'that' department though. I drink it often and quite like it. Oh.. and you could get it in the health foods shops and the supermarkets.
I buy mine in Morrisons and enjoy the taste ! If you drink it before bedtime don't take sleeping tablets at the same time or there could be trouble ahead during the night ! lol
Only drink it well chilled,if you taste it first when at room temperature you might be put off!
It's not THAT bad warm,but certainly much better when chilled.