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Related Experiment Videos

Adverse interaction between clonidine and verapamil

R Jaffe1, T Livshits, M Bursztyn

  • 1Department of Internal Medicine, Hadassah University Hospital, Mount Scopus, Jerusalem, Israel.

The Annals of Pharmacotherapy
|July 1, 1994
PubMed
Summary
This summary is machine-generated.

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Combining clonidine and verapamil may cause adverse reactions, including atrioventricular (AV) block and hypotension. Clinicians should be aware of this potentially serious drug interaction between these common antihypertensive medications.

Area of Science:

  • Cardiology
  • Clinical Pharmacology

Background:

  • Verapamil and clonidine are frequently prescribed antihypertensive agents.
  • Adverse interactions between these two medications are not widely reported.

Observation:

  • Two cases of patients developing atrioventricular (AV) block and severe hypotension after initiating clonidine therapy while on verapamil are presented.
  • The adverse events resolved upon discontinuation of both medications.

Findings:

  • The combination of clonidine and verapamil may lead to synergistic adverse effects on the atrioventricular node and peripheral circulation.
  • Complete AV block and severe hypotension were observed in patients treated with both drugs.

Implications:

  • Healthcare providers should exercise caution when prescribing clonidine and verapamil concurrently, even in patients without pre-existing cardiac conduction abnormalities.

Related Experiment Videos

  • Awareness of this potentially fatal interaction is crucial for patient safety in managing hypertension.