Acute poisoning by drugs with membrane-stabilizing effect

What is Acute poisoning by drugs with membrane-stabilizing effect?

A rare clinical situation characterized by acute, potentially life-threatening toxic effects of drugs acting on voltage-gated sodium or calcium channels, such as tricyclic antidepressants, anticonvulsants, local anesthetics and antiarrhythmics, some beta-blockers, and chloroquine. Clinical manifestations include abnormal ECG findings (intraventricular conduction block with widening of the QRS complex, T wave flattening, prolongation of the QT interval) and variable signs and symptoms depending on the drug, typically involving the cardiovascular and central nervous system, among others.

Inheritance type

Not applicable

Age of Onset

  • All ages
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