Magnesium sulfate / potassium sulfate / sodium sulfate
"I was freaking out about how Suprep would taste. I have my procedure tomorrow, so I'm going to comment on here as time progresses.

I put both bottles of Suprep mix in the fridge last night. Pharmacist suggested I mix it with ginger ale or 7 up. So I decided to mix it with 7 Up. Honestly, it was not that bad..Everyone makes it out to be the most vile thing they've tasted ever. Was it delicious? No,It was just really sweet, syrupy with a little bit of a bitter after taste.I chugged it. Couldn't do it with a straw, was taking too long. I drank one 16-oz water right after... Felt nauseous and full but not from the Suprep, but from the volume of liquid. So far so good... Will check back in a few hours..."