Thanks for the great information, it has the potential to help many people. I take 4.5 LDN everyday for an autoimmune. If you have one autoimmune your are at risk of others developing. So I plan to take it as a preventive measure for the rest of my life. Most MD's do not understand it or in my opinion are told not to Rx by big pharma. At $17 per month it is knocking out $1,000 per month meds. Of course they hate it and won't put research money into it.