I would have to advise you to do whatever prep your doctor prescribes and nothing more. Different formulations are available to do the job but you should not experiment on your own. If you have questions about this, it should be directed to the doctor who will do the procedure. I'm sorry I cannot be more help but I do believe in following doctor's orders to the letter when it comes to such things as it would be a shame to be denied the procedure because you took something he/she did not want you to have.
Good luck with the procedure. The prep is the only hard part about it.
The answers in online forums are for information only and are not intended to substitute for medical advice and care. Please see your personal health care provider for further evaluation of your individual case.
Debbie Miller, RN