Generic Name: Digoxin

  • What is Lanoxin?

    Lanoxin is used to treat chronic heart failure and atrial fibrillation (an irregular, fast heartbeat).

  • What is the most important information I should know about Lanoxin?

    You should not stop taking Lanoxin without first speaking to your doctor. Suddenly withdrawing the drug could cause a serious change in your heart function. Even if you feel better, you need to keep taking this medication to help the heart work properly.

    Do not drive or perform other possibly unsafe tasks until you know how you react to Lanoxin; this drug may cause dizziness or blurred vision. These effects may be worse if you take it with alcohol or certain medicines.

    Tell your doctor or dentist that you take Lanoxin before you receive any medical or dental care, emergency care, or surgery.

    Your doctor may schedule certain lab tests periodically while you use Lanoxin. These tests will monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.

  • Who should not take Lanoxin?

    Do not take Lanoxin if you are sensitive to the drug or if you have an abnormal heart rhythm known as ventricular fibrillation.

  • What should I tell my doctor before I take the first dose of Lanoxin?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Lanoxin. Also, talk to your doctor about your complete medical history, especially if you have calcium, potassium, or magnesium imbalances; any heart problems; a history of heart attack, kidney disease, underactive or overactive thyroid gland, fainting due to heart problems, or liver or lung problems. Also tell your doctor if you are scheduled for any surgery or dental work, or if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults: Your doctor will determine the exact dose based on your needs, including if you are >70 years or have impaired kidney function.

    Children: Infants and young children usually have their daily dose divided into smaller doses. Children >10 years take adult dosages in proportion to their body weight. The dosage will be determined by your doctor.

  • How should I take Lanoxin?

    Take Lanoxin exactly as prescribed. It is usually taken once daily. Take Lanoxin on an empty stomach. However, if the drug upsets your stomach, you can take it with food.

    Lanoxin is available in tablet, capsule, liquid, and injectable forms. If you are taking the liquid form, use the specially marked dropper that comes with it.

  • What should I avoid while taking Lanoxin?

    Avoid taking Lanoxin with high-bran/high-fiber foods, such as certain breakfast cereals.

    Do not drive or perform other possibly hazardous tasks until you know how you react to Lanoxin; this drug may cause dizziness or blurred vision. These effects may be worse if you take it with alcohol or certain medicines.

  • What are possible food and drug interactions associated with Lanoxin?

    If Lanoxin is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Lanoxin with the following: alprazolam, amiodarone, amphotericin B, antacids, anticancer drugs such as cyclophosphamide, beta-blockers (such as atenolol and propranolol), calcium channel blockers (such as diltiazem or verapamil), cholestyramine, clarithromycin, cough, cold, and allergy remedies, diphenoxylate, diuretics (water pills), erythromycin, indomethacin, itraconazole, kaolin-pectin, metoclopramide, neomycin, propafenone, propantheline, quinidine, rifampin, spironolactone, succinylcholine, sulfasalazine, tetracycline, or thyroid hormones.

  • What are the possible side effects of Lanoxin?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: change in heartbeat, confusion, diarrhea, dizziness, headache, loss of appetite, nausea, rash, vomiting, weakness

    Lanoxin can produce visual disturbances (blurred or yellow vision), lack of emotion, and mental disturbances (such as anxiety, depression, delirium, and hallucinations). If you experience any of these symptoms, contact your doctor.

  • Can I receive Lanoxin if I am pregnant or breastfeeding?

    The effects of Lanoxin during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Lanoxin?

    If you remember within 12 hours, take it immediately. If you remember later, skip the missed dose and go back to your regular schedule. Do not take two doses at once. If you miss doses 2 or more days in a row, talk to your doctor.

  • How should I store Lanoxin?

    Store at room temperature.

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