the hypotension as well as the bradycardia owing to clonidine were significantly ( p less than 0.01 ) blocked by similar prior application of atropine methylnitrate ( 1 % ) and hemicholinium-3 ( hc3 , 1 % ) , whereas hc3 pretreatment only insignificantly blocked the hypotension produced by glycine ( p greater than 0.80 ) and gaba ( p less than 0.70 ) .
C0428977
bradycardia
C0128170
atropine