The pathophysiology of cardiac arrhythmias is complex and the actions of drugs that are useful in stopping or controlling them may seem equally so. Nevertheless many patients with arrhythmias respond well to therapy with drugs and a working knowledge of their effects and indications pays dividends, for irregularity of the heart-beat is at least inconvenient and at worst fatal.The mechanisms by which the failing heart may be sustained are now better understood; carefully selected and monitored drugs can have a major impact on morbidity and mortality in this condition.
• Drugs for cardiac arrhythmias
• Principal drugs by class
• Specific treatments, including those for cardiac arrest
• Drugs for cardiac failure
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