Pharm
Metoprolol
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Metoprolol
, Lopressor, Metoprolol Succinate, Metoprolol Tartrate, Toprol XL
See Also
Beta Blocker
Mechanism
Selective
Beta Blocker
Indications
Myocardial Infarction
Atrial Fibrillation Rate Control
Pharmacokinetics
Intravenous dosing
Onset of action in 5 minutes after intravenous dose
Sustained response for 6-8 hours
Dosing
Oral: Metoprolol Succinate (Toprol XL, extended release)
Preferred oral formulation
Dose: 50-100 mg orally daily (Maximum 400 mg/day)
Oral: Metoprolol Tartrate (Lopressor, immediate release)
Dose: 50 mg orally twice daily (Maximum 450 mg/day)
Intravenous Metoprolol (Lopressor)
Load: 2.5 to 5 mg IV over 2 to 5 minutes
Repeated up to 3 doses (15 mg maximum)
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