Quia-Cal is a high potency B1-Calcuim and Magnesium Supplement. Supplied in a rapid one-shot oral paste syringe which promotes healthy nerves in your horse. Use as an aid in the prevention of minor nervousness during times of stress due to B1 and/or magnesium deficiency. Quia-Cal does NOT contain Tryptophan and will NOT make your horse "dopey". It has a palatable apple-cinnamon flavor that your horse will love!