digoxin toxicity

Despite being widely prescribed, acute overdosage with digoxin is uncommon. However, digoxin has a low therapeutic index and toxicity is common. Moreover, toxicity can occur within the 'therapeutic range'; old patients are especially at risk of developing digoxin toxicity.

Toxicity is likely above 2 ng/ml and almost invariable over 3 ng/ml.

• toxicity within the therapeutic range
• features of toxicity
• cautions and contraindications
• management
• digoxin

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