@LisaK
Yes, Fleet Bisacodyl enemas are the easy way to go, but they are no longer widely available. Nor are they cheap.
A Fleet Bisacodyl enema costs roughly $2.50 plus shipping on-line and each had 10 mg of Bisacodyl in it.
A Magic Bullet costs about $0.50 to $0.75 including shipping and each also has 10 mg of Bisacodyl in it.
Magic Bullets completely dissolve in warm water within 5 minutes.
As far as I can tell, a Magic Bullet and a Fleet Bisacodyl enema have about equal poo power.
Also, if the Magic Bullet is given dissolved in a bit water, both have just about the same speed of action.
My preference is for the Magic Bullet. I dissolve one (occasionally two) in about 2 Oz (60ml) of warm water and take it with a piston syringe and Fr 18 catheter, well lubed and inserted high into the colon... at least 8", preferably 12"... whilke in left lying or knee-chest position. The injection of the laxative solution up high is more effective than down low, is easier to retain, and causes a very complete poo if held long enough. I try to hold the enema for at least 20 minutes, by which time the cramping is very strong and widespread.... and I'm on the brink of an accident. Within seconds of sitting on the toilet, this treatment produces complete emptying of everything, top to bottom. You have no choice.