Regarding LDN: There are many variables to achieving success with LDN, first is time-it can take 6 months to a year to feel/see the effects. Second is dosage. Third is potency-some compounding pharmacies have dispensed LDN with little to no potency with the sad result that patients believe LDN did not work for them. Many veteran LDN users have found when they switched pharmacies LDN suddenly stopped working.

Based on what I have read I think the most effective LDN protocol is making LDN yourself from 50mil pills-some doctors will prescribe it this way if asked. It is easy to do and allows you considerable latitude with dosing. You can more easily start low and gradually increase the amount. If need be with this method you can also try a divided dose protocol. IMO LDN is easy to make and to take, but it requires some trial and tinkering.

I hope you have good luck with the ketamine.