I've tried Miralax & Halflytely for prep & had bad reaction to both. Face & throat swelled, bad headache for 2 days. Allergist told me most of his patients couldn't tolerate polyethylene glycol which is in those & most preps.
Anything with magnesium also triggers seizures for me.

About the only thing left if phospha soda & there is a warning about kidney failure & seizures. Have any of you used this product & how did you react.
I've already had to cancel one colonoscopy & hope to find something I can life thru. Thanks.