No need to stop the LDN for scopes. I've never had an issue, and I believe the effects of the 4.5 mg taken at bedtime are long gone ... that 4 hour rebound effect everyone talks about... by the next morning. The doctor who performs my scopes put me on LDN and IF there was an issue, I would have heard about it. The one thing you probably need to be prepared for is the puzzled looks on the face of the staff when they ask what meds the patient is on. Some have heard of Naltrexone, the majority will probably have no idea as to what LDN means, or will never have heard of low dose Naltrexone treatment. As for the other items, I haven't a clue. If they were ordered/suggested by a naturopathic doctor, I'm guessing no one at the clinic/hospital where the procedure is being performed will have either. Not to sound any alarm bells or whatever here, but an awful lot of naturopathic treatments, supplements, remedies, etc., are generally thought of as safe because they are natural... occuring naturally, not a hodge podge of modern chemicals. But, bella donna, nightshade, etc., are natural, yet deadly. People can/do poison themselves, their systems, with supplements, vitamins, naturopathic remedies IF they don't do enough homework, research. Just because you can buy a bottle of Saint Johns Wart off the shelf in any drug or grocery store doesn't mean that one can't over dose or whatever on it. I'm not saying that is the case in your situation, but since you presented an opportunity to put this warning out there to the general populace, I thought it too good an opportunity and too vital a topic not to take advantage of it, OK?