Lanoxin is widely used in the treatment of various heart conditions, namely chronic heart failure and/or atrial fibrillation and flutter (irregular heart rhythms caused by an electrical problem in the upper chambers of the heart).
It is derived from the leaves of Digitalis, a plant related to foxglove. Digitalis has been used medically for over 200 years.
Lanoxin works by slowing down the rate of the heart so that each heartbeat is more effective at pumping blood. In people with heart failure, it also helps to control the symptoms of tiredness, breathlessness and fluid retention.
Lanoxin may be used in premature and full term babies, infants and children.
It can also be used in elderly people, but because the elderly are more prone to the side effects of Lanoxin, it is usually used in smaller doses than in younger adults.
Lanoxin may be used to treat heart failure and/or irregular heart beats in pregnant women.
Follow the directions for using this medicine provided by your doctor. Take Lanoxin exactly as directed.
Lanoxin is usually taken once a day. Lanoxin tablets should be swallowed with a drink of water.
Do not stop taking Lanoxin without first talking to your doctor.
If you miss a dose of Lanoxin, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Keep Lanoxin tablets in a cool, dry place away from light.
Store at room temperature between 59 and 77 degrees F (15-25 degrees C) away from light and moisture.
Report promptly any loss of appetite, irregular heartbeat/palpitations, drowsiness, nausea, diarrhea or constipation, abdominal pain, vomiting, headache, fatigue, muscle weakness or vision changes.
Unlikely but report promptly dizziness, fainting, mood changes or confusion/mental changes.
Very unlikely but report promptly any black stool or seizures.
Notify your doctor immediately in the unlikely event an allergic reaction occurs.
Symptoms of an allergic reaction include difficulty breathing, skin rash or itching.
If you notice other effects not listed above, contact your doctor or pharmacist.
Before using this drug, tell your doctor your medical history, including any allergies, especially drug allergies, heart, lung or kidney diseases, high blood pressure, low thyroid function (hypothyroid) or low potassium levels.
Limit alcohol intake (e.g., certain liquid medications containing alcohol) since the side effects of this medication may be increased by alcohol.
This medication should be used only when clearly needed during pregnancy.
Discuss the risks and benefits with your doctor.
This drug is excreted into breast milk.
Consult your doctor before breast-feeding.
Caution is advised when this drug is used in the elderly.
If you miss a dose, use it as soon as you remember.
If it is near the time of the next dose, skip the missed dose and consult your doctor or pharmacist for a new dosing plan.
Tell your doctor of all nonprescription and prescription medication you may use, especially water pills (diuretics), amphotericin, corticosteroids (e.g., prednisone), corticotropin, edetate, laxatives, sodium polystyrene sulfonate (Kayexalate), glucagon, calcium (IV), quinidine, procainamide, propranolol, amiodarone, propafenone, certain calcium channel blockers (e.g., verapamil, diltiazem), itraconazole, succinylcholine and indomethacin.
Also, drowsiness-causing medications such as tranquilizers, narcotic pain relievers, drugs for sleep, sedatives, anxiety medicines, certain antihistamines or muscle relaxants, anti-seizure drugs and St John's wort.
Do not start or stop any medicine without doctor or pharmacist approval.