[On chronotropic heart effects].
D006145:Guanethidine; D006321:Heart; D011763:Pyrrolizidine Alkaloids; D012110:Reserpine; D014703:Veratrum; D014704:Veratrum Alkaloids
D011763:Pyrrolizidine Alkaloids; D014704:Veratrum Alkaloids; D012110:Reserpine; D006145:Guanethidine
GUANETHIDINE; HEART; INTERMEDIN; RESERPINE; VERATRUM