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Related Experiment Videos

Göteborg Metoprolol Trial: tolerance.

J Herlitz, K Pennert, H Wedel

    The American Journal of Cardiology
    |June 25, 1984
    PubMed
    Summary
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    Metoprolol treatment in acute myocardial infarction patients showed good tolerance, despite some early cardiovascular adverse events and increased bradycardia/hypotension compared to placebo. Overall, the drug is considered safe for intravenous and oral administration in this patient group.

    Area of Science:

    • Cardiology
    • Pharmacology

    Background:

    • Acute myocardial infarction (AMI) management often involves beta-blockers.
    • Assessing the safety and tolerance of metoprolol in AMI patients is crucial.

    Purpose of the Study:

    • To evaluate the tolerance of metoprolol administered intravenously and orally in patients with suspected acute myocardial infarction.
    • To compare adverse events and treatment withdrawals between metoprolol and placebo groups.

    Main Methods:

    • A 3-month follow-up study involving patients with suspected AMI.
    • Patients received either metoprolol or placebo, with blinded treatment.
    • Adverse events, treatment withdrawals, and dosing adherence were monitored.

    Main Results:

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  • 19.1% of patients withdrew treatment; cardiovascular adverse experiences led to more withdrawals in the metoprolol group, particularly early on.
  • Bradycardia and hypotension were more frequent with metoprolol.
  • Severe atrioventricular block occurred similarly in both groups; severe congestive heart failure was more common in the placebo group.
  • A higher percentage of metoprolol-treated patients did not receive full doses compared to placebo.

    • Conclusions:

    • Metoprolol demonstrates generally good tolerance in patients with suspected acute myocardial infarction, even with intravenous and oral administration.
    • While some adverse events like bradycardia and hypotension are more common, severe complications were comparable or less frequent than placebo for certain conditions.