Guanethidine [Chemical/Ingredient] An antihypertensive agent that acts by inhibiting selectively transmission in post-ganglionic adrenergic nerves. It is believed to act mainly by preventing the release of norepinephrine at nerve endings and causes depletion of norepinephrine in peripheral sympathetic nerve terminals as well as in tissues. C0018318 Octadine Guanethidine Oktadin 5036 M0009675 Guanidine, (2-(hexahydro-1(2H)-azocinyl)ethyl)- Guanethidine D006145 C24232 ((2-Hexahydro-1(2H)-azocinyl)ethyl)guanidine N0000006941 Guanethidine Guanidines [Chemical/Ingredient]