The active sympathomimetic hormone from the adrenal medulla in most species. It stimulates both the alpha- and beta- adrenergic systems, causes systemic vasoconstriction and gastrointestinal relaxation, stimulates the heart, and dilates bronchi and cerebral vessels

Noradrenaline (sometimes referred to as norepinephrine or l-arterenol/levarterenol), a sympathomimetic amine which differs from adrenaline by the absence of a methyl group on the nitrogen atom.

Potassium bitartrate, also known as potassium hydrogen tartrate, has formula KC4H5O6. It is a byproduct of winemaking. In cooking it is known as cream of tartar.