The prolonged use of guanethidine.
D000578:Amidines / Q000628:therapy*; D000959:Antihypertensive Agents / Q000628:therapy*; D006145:Guanethidine; D006801:Humans
D000578:Amidines; D000959:Antihypertensive Agents; D006145:Guanethidine
AMIDINES/therapy; ANTIHYPERTENSIVE AGENTS/therapy