<prompt> β blocker with intrinsic sympathomimetic activityPropanalolCarvedilolAcebutololAtenolol  <response>: β blockers with intrinsic sympathomimetic activity have partial agonistic action on β1 receptors thus causing lesser bradycardia.Ex: Acebutalol, Celiprolol, Cartelol, Pindolol, Penbutolol, Labetalol. 