600-1200 mgs of alpha lipoic acid. Germany has been using it by 1966 by IV for neuropathy. I could not find it in the store so I asked the Krogers pharmacist to order it for me. 8.00 a bottle and 60 pills. As always the United States is behind in research. I have severe axonal sensorimotor polyneuropathy, small fiber neuropathy along with cardiac autonomic neuropathy.