in addition , doxapram hcl , given iv at a dosage of 5.5 mg/kg , antagonized bradycardia but potentiated xylazine-induced hypertension , and an iv injection of 4-aminopyridine at a dosage of 0.5 mg/kg did not affect the cardiovascular actions of xylazine .
C0428977
bradycardia
C0007226
cardiovascular