| 摘要 |
Treatment or prophylaxis of cardiac disorders in mammals comprises administering by intravenous infusion of a beta-blocking ester compd. of formula (I) or its salt. In (I), X is O-CO, R1-OCO, O-CO-R1, R1- O-CO-R1, CO-O-R1 or R1-CO-O-R1; R is lower alkyl, lower alkenyl or aralkyl; R1 is lower alkyl; Ar is phenyl, naphthyl or pyridyl opt. substd. by lower alkyl, lower alkoxy, halogen, acetamido, amino, nitro, hydroxy, hydroxyalkyl, cyano or formyl. (I) is beta-adrenergic blocking agents with a short duration of action.
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