Metoprolol Tartrate Management

Indications and Benefits

The American College of Cardiology strongly recommends long-term use of oral beta-blockers, such as metoprolol, for secondary prevention in high-risk patients, with a Class I, Level of Evidence: A recommendation 1
Beta-blockers like metoprolol reduce the risk of reinfarction and ventricular fibrillation when continued beyond the initial acute phase, according to the American College of Cardiology 1, 2
For patients with atrial fibrillation, metoprolol is an important medication for rate control and should be maintained unless specific contraindications exist, as stated by the American Heart Association 3

The American College of Cardiology recommends holding metoprolol in situations such as signs of heart failure or cardiogenic shock, evidence of a low output state, severe bradycardia, hypotension, PR interval greater than 0.24 seconds, second or third-degree heart block, and active asthma or reactive airway disease 4
The American Heart Association suggests specific parameters for holding metoprolol, including heart rate <50 bpm and systolic blood pressure <90 mmHg 3, 5

The American College of Cardiology advises that if metoprolol is held, it should not be restarted without physician reassessment, and the reason for holding should be documented in the chart 1, 2
The European Heart Association recommends that if metoprolol must be discontinued in patients with coronary artery disease, it should be tapered gradually over 1-2 weeks to prevent rebound effects, and temporary discontinuation is advised in shocked or severely hypoperfused patients 6

The European Heart Association suggests that for patients who have recently experienced decompensated heart failure, metoprolol can be safely continued during episodes of decompensation, though dose reduction may be necessary 6
The American College of Cardiology recommends avoiding vague holding parameters and ensuring that orders include notification parameters for the physician 5