Symptoms of Lanoxin overdose include: Abdominal pain, diarrhea, irregular heartbeat, loss of appetite, nausea, very slow pulse, vomiting In infants and children, irregular heartbeat is the most common sign of overdose. It improves the strength and efficiency of your heart, which leads to better circulation of blood and reduction of the uncomfortable swelling that is common in people with congestive heart failure. DIGIBIND is specific antidote for digoxin and may be used to reverse potentially life-threatening ventricular arrhythmias due to digoxin overdosage. Gray-blue skin discoloration in sun-exposed areas, asymptomatic corneal microdeposits in most patients. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, which should be based on renal function, and it may acheter la marque lanoxin be useful to monitor renal function see DOSAGE AND ADMINISTRATION.