Tyrosine

Tyrosine or L-Tyrosine, is an amino acid that can be supplied by the diet or made from another amino acid, phenylalanine. It is the building block of many important brain chemicals, or neurotransmitters, such as epinephrine, serotonin and dopamine. Not only is Tyrosine important to proper function of the thyroid, adrenal and pituitary glands, its relationship with dopamine has led to its use in horses with anhidrosis (non-sweaters), Cushing's Disease and narcolepsy.