Digoxin is often prescribed by veterinarians for the treatment of heart disease. This includes congestive heart failure (heart pumping an insufficient amount of blood), heart rhythm abnormalities, and dilated cardiomyopathy (weak and enlarged heart). It is often used in conjunction with other drugs- typically diuretics and ACE inhibitors.
Digoxin increases the amount of calcium available to the heart. It does this by inhibiting a sodium-potassium pump, thus allowing sodium to flow in and displace calcium in the heart wall. This moves the calcium into the heart and makes it available to the muscles responsible for contraction. This strengthens the heart’s contractions, as well as slows down the heart and shrink it’s size. This increases the amount of blood pumped and reduced the amount of fluid build-up in the lungs (typically associated with congestive heart failure and other heart abnormalities).
Store in a tightly sealed container at room temperature.
Give the missed dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give your pet two doses at once.
Digoxin may result in these side effects:
The collie breed of dog may be more susceptible to the central nervous system effects of Digoxin. Use with caution in this breed.
Digoxin may react with these drugs:
USE CAUTION WHEN ADMINISTERING THIS DRUG TO PETS WITH SEVERE HEART OR PULMONARY DISEASE - giving this drug to pets with certain heart problems- ventricular arrythmias, digitalis intoxication, idiopathic hypertrophic subaortic stenosis, acute myocarditis, acute myocardial infarct, ventricular tachycardias, chronic constrictive pericarditis, or AV block- may do more harm than good. Be sure your veterinarian has an extensive history of your pet’s heart problems.
USE CAUTION WHEN ADMINISTERING THIS DRUG TO PETS WITH LIVER OR KIDNEY DISEASE
USE CAUTION WHEN ADMINISTERING THIS DRUG TO CATS - Use with extreme caution and only with the recommendation of an experienced veterinarian when giving this drug to cats, especially those with feline hypertrophic cardiomyopathy. Digoxin has a tendency to consistently cause an increase in oxygen requirements and serum levels.
Pets with high sodium, low potassium, or high calcium in the blood may need to be given lower doses. Also, lower doses may be necessary in pets with thyroid disorders.
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