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A depressed myocardium.

S J Partridge1, D H MacIver, T Solanki

  • 1Taunton and Somerset NHS Trust, England, United Kingdom. samuel@langford134.freeserve.co.uk

Journal of Toxicology. Clinical Toxicology
|August 10, 2000
PubMed
Summary
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This case report highlights the significant cardiotoxicity of venlafaxine and paroxetine overdose. High doses of these antidepressants can lead to severe cardiac events, including myocardial damage.

Area of Science:

  • Pharmacology
  • Toxicology
  • Cardiology

Background:

  • Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) with some dopamine reuptake inhibition.
  • Paroxetine is a selective serotonin reuptake inhibitor (SSRI).

Observation:

  • A 27-year-old male ingested a massive overdose of venlafaxine (1987.5 mg) and paroxetine (360 mg).
  • The patient developed severe hypertension, transient ECG abnormalities, and myocardial damage.

Findings:

  • Echocardiogram revealed marked hypokinesis in the basal anterior septum, indicating persistent myocardial damage.
  • Despite recovery of blood pressure and ECG, the myocardial damage was notable.

Implications:

  • This case suggests that combined overdose of venlafaxine and paroxetine poses a serious risk of cardiotoxicity.

Related Experiment Videos

  • Clinicians should be aware of potential cardiac complications in patients with massive antidepressant overdoses.