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Probable adverse interaction between oral metoprolol and verapamil
Postgraduate Medical Journal
|October 1, 1984
Abstract:
A combination of an oral beta-adrenergic blocking agent and verapamil has been advocated as a safe treatment for angina. A case of Wenckebach type atrioventricular block occurring in a patient on metoprolol and verapamil is reported. It is suggested that this combination is used with caution.
Insights
Combining metoprolol and verapamil for angina treatment can lead to Wenckebach type atrioventricular block. This combination should be used cautiously in patients.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Beta-adrenergic blocking agents and verapamil are commonly prescribed for angina.
- The combination of these drugs is considered safe for managing angina.
Observation:
- A case study identified a patient experiencing Wenckebach type atrioventricular block.
- The patient was concurrently taking metoprolol (a beta-adrenergic blocking agent) and verapamil.
Findings:
- The concurrent administration of metoprolol and verapamil was associated with the development of Wenckebach type atrioventricular block.
- This adverse cardiac event highlights a potential drug interaction.
Implications:
- Clinicians should exercise caution when prescribing the combination of metoprolol and verapamil.
- Further investigation into the safety profile and potential risks of this drug combination is warranted.