<prompt> Beta 1 antagonist used in congestive cardiac failure ?AtenololMetoprololSalbutamolTerbutaline  <response>: Ans. is b i.e., Metoprolol b-blockers used in CHF Cardioselective b-blockers b1-blockers Atenolol Bisoprolol Celiprolol Esmolol Metoprolol Nebivolol Acebutalol Betoxalol Non-selective blocker with a-blocking acting Carvedilol Dilovalol Medroxalol Bucindolol Labetalol Bevantolol Nipradilol Among all these following three are used most commonly Carvedilol Metoprolol Bisoprolol 