system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
β blocker with intrinsic sympathomimetic activity
assistant
The correct answer is  β blockers with intrinsic sympathomimetic activity have partial agonistic action on β1 receptors thus causing lesser bradycardia.
Ex: Acebutalol, Celiprolol, Cartelol, Pindolol, Penbutolol, Labetalol.