Overdosage could result in excessive peripheral vasodilatation with subsequent marked and probably prolonged systemic hypotension. Clinically significant hypotension calls for active cardiovascular support including monitoring of cardiac and respiratory function, elevation of extremities, attention to circulating fluid volume and urine output, or vasoconstrictor may be used.
If the patient is seen shortly after oral ingestion, employ emetics or lavage and cathartics. Treatment is supportive. General management of calcium channel blocker overdosage is shown as follows. (See Table.)
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