I have used all of those together a little time ago, minus the iodine.
But just to be on the safe side, take the other stuff apart from Salt + C-vitamin (at least 1 hour, I think).
And as I said, you might experience some diarrhea effects, at least at first. So that -might- flush some of the other herbs or medication quicker out of your system. But your digestive tract should get used to the amounts of salt and c-vitamin.