<prompt> Beta 1 antagonist used in congestive cardiac failure -AtenololMetoprololSalbutamolTerbutaline  <response>: Ans. is b i.e., Metoprolol b-blockers used in CHF1. Cardioselective b-blockers b-blockerso Atenololo Bisoprololo Celiprololo Esmololo Metoprololo Nebivololo Acebutalolo Betoxalol2. Non-selective b-blocker with a-blocking actingo Carvedilolo Dilovalolo Medroxalolo BucindololoLabetalolo Bevantololo Nipradilol o Among all these following three are used most commonly -CarvedilolMetoprololBisoprolol 