graded doses of atropine sulfate ( 0.5 , 1.0 , 2.0 , 4.0 , 8.0 and 40.0 micrograms/kg body weight ) were administered to 12 human heart transplant recipients to test the hypothesis that the bradycardiac effect of low dose atropine is centrally mediated .
C0596005
atropine sulfate
C0004259
atropine