This was an actual barium enema prep from the 1970s
Lite breakfast, no solid food, alcohol or dairy products from 9 Am on the day before.
7 AM simple Fleet enema in left side position.
Any time there is Magnesium Citrate involved always have a second bottle ready(The stuff is NOT expensive) in case you just can't keep the first bottle down, you can wait 12 hours and try again!
Put a pillow in front of the toilet.
Fill a stadium cup with ice water.
Kneel on the pillow with the ice water in one hand and the magnesium citrate in the other.
A sip of ice water begins the process.
Then a sip of magnesium citrate and a si[p of water. count to ten. Repeat. keep doing that until you either get to the end of the magnesium citrate or feel too nauseated to continue. My first few times using this method, I had it actually come up into my mouth and had to re-swallow. The reason for such a large cup of ice water is so you can drink a few extra sips of water along the way and not have to worry about running out. drink the rest of the stadium cup over the next hour or so. You need to drink all the water you can.
You WILL see results in no more than 3 hours, often not much more than an hour. You don't want to leave the house, or even get too far from the bathroom, because the stuff does NOT cut you any slack! When it feels like it's coming, IT IS! It WILL be loose watery poop. Some people have compared it to pond scum!
After 3 hours, take 4 Dulcolax tablets (I use the generic bisacodyl) I have found that about half the times I have done this, I have had to take the bisacodyl while sitting on the toilet.
Normally the process will wind down about 8-12 hours after the bisacodyl with only clear fluids passing.
As soon after that as you feel good enough you can go back to eating normally.
It is going to take some days( Not weeks, Days!) to re-establish normal bowel movements.
This is something you should do only OCCASIONALLY, no more than 2-3 times per YEAR!
You should not take ANY other laxatives, enemas or suppositories for at least two weeks before or 6 weeks after this cleanse.