Abstract

In cats a continuous infusion of tetraethylammonium ion converted the usual depressor response to intravenous administration of pilocarpine to a marked pressor response. This pressor response was unaffected by adrenalectomy, evisceration, or kidney ligation. The vasopressor action was blocked or inhibited by previous administration of atropine or of the adrenergic blocking agents, ergotoxine, Dibenamine, and C-7337.