Coenzymated B-1 Cocarboxylase, Vitamin B1 Sublingual, 60 Tablets, Source NaturalsCoenzymated Vitamin B 1 Cocarboxylase Sublingual Thiamin diphosphate, the coenzyme form of vitamin B 1, is important for the production of energy from carbohydrates, for synthesis of the key neurotransmitter acetylcholine, and for nerve cell membrane function. Supplement Facts Serving Size: 1 tablet Amount %DV Thiamin (from 25 mg cocarboxylase [Coenzymated?]) 16 mg 10. 67 Other Ingredients: sorbitol, mannitol, natural peppermint flavor, sodium citrate