Thulesius O, Gjöres J E, Berlin E
Eur J Clin Pharmacol. 1979;16(6):423-4. doi: 10.1007/BF00568204.
ST 1059, the pharmacologically active metabolite of midodrine, is a powerful vasoconstrictor compound, acting by stimulation of alpha-receptors. It elicited 80% of noradrenaline-induced contraction of human veins.