Polyethylene glycol 3350
"I have had to use this product a lot more than I'd like to admit. Over the last year I have gone through about 6 boxes of 12 if not more.... works in about 2 minutes for me so it works almost instantly which is why I love them so much however they only clean out the lower section of your bowel and not all your bowels. Which is good and bad. For severe constipation I'd recommend also taking an oral medication as well 

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