Medicine & USMLE

Beta-1 Selective Beta Blockers

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Alpha & Beta Blockers (New)
  1. Phentolamine
  2. Phenoxybenzamine
  3. -osin Drugs
  4. Beta-1 Selective Beta Blockers
  5. Dual Alpha Beta Blockers
  6. Mirtazapine

Summary

Beta-1 selective beta blockers work as beta-1 antagonists. Like all beta blockers, they share a -lol ending. Drug names of the beta-1 selective beta blockers include atenolol, esmolol, bisoprolol, betaxolol, metoprolol, and acebutolol. Acebutolol is unique for being a partial agonist at beta receptors.

Key Points

  • Beta-1 Selective Blockers
    • Drug Names
      • Acebutolol
        • Partial Beta-1 Agonist
      • Atenolol
      • Betaxolol
      • Bisoprolol
      • Esmolol
      • Metoprolol
    • Mechanism
      • Selectively Blocks Beta-1 Receptors
        • Decreased HR (Chronotropy and Dromotropy) and Stroke Volume (Inotropy) → Decreased Cardiac Output
        • Reduces renin release