four groups were prepared : group ( a ) was not given atropine sulfate as a premedication and ( b ) , ( c ) and ( d ) were given atropine 0.0125 mg/kg , 0.025 mg/kg , 0.05 mg/kg by intramuscular injection 30 min before the first blood sampling , respectively .
C0596005
atropine sulfate
C0004259
atropine