I was searching for information for my vision; I have diabetic retinopathy with macular edema, and my search turned up of all things chronic fluoride poisoning. I think this link has really interesting information; it may have been posted before, if so, sorry. The second link is for drug bank so you can look up any medication you or someone you know may be taking or have taken. I believe if the chemical name has an F in it, that is for fluoride, as opposed to the article which says fl.
I had sent guafenisin to my cousin last year to help her fibromyalgia. The treatment says you may get worse before you get better. I surmise that it is due to the guafenisin kicking out the toxins and the body not getting it out fast enough, just like Iodine without the salt push.