Wikipedia
Cerefolin
Cerefolin is a prescription medication made by Pamlab that contains 5.635 mg of folate as L-methylfolate, 1 mg of vitamin B as methylcobalamin, 50 mg of vitamin B as riboflavin, and 5 mg of vitamin B as pyridoxine. It is approved by the U.S. Food and Drug Administration for the treatment or prevention of vitamin deficiencies.
"Cerefolin NAC" contains L-methylfolate (as Metafolin) 5.6 mg, methylcobalamin 2 mg, N-acetylcysteine 600 mg.