constipation
"The results I get from Dulcolax are very unpredictable.  I always take 1 tablet.  Sometimes it just does its thing in one day or so with no appreciable side effects.  At other times I get fairly nasty cramps and the soft stools for days, which tends to dehydrate and make me feel fairly "energy free".   My recommendation is to take 1 tablet and see how it goes.  If cramps are severe, talk to your doctor before increasing the dose."