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Lopressor, Toprol-XL
Beta blocker • Cardioselective beta-1 blocker
Selectively blocks beta-1 adrenergic receptors, reducing heart rate and contractility
Drug Class
Beta blocker
Subclass
Cardioselective beta-1 blocker
Half-life
3-7 hours
Time for plasma concentration to decrease by 50%
Protein Binding
12%
Fraction bound to plasma proteins
Therapeutic Index
Wide
Margin between therapeutic and toxic doses