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Overdose and Treatment: Overdosage of hydralazine may produce hypotension, tachycardia, headache and generalized skin flushing. Myocardial ischemia and cardiac arrhythmia may develop; profound shock can occur in severe overdosage.
There is no specific antidote for the treatment of hydralazine overdosage. Support of the cardiovascular system is most important for the treatment of hydralazine overdosage. Evacuation of gastric contents using adequate precautions to protect the airway and prevent aspiration should be done only after cardiovascular status has been stabilized.
