Digoxin
About Digoxin
Digoxin is an oral prescription medication used to treat heart failure and certain types of irregular heartbeats, such as chronic atrial fibrillation. It helps the heart beat stronger and with a more regular rhythm, allowing the body to receive a steady supply of oxygen-rich blood. This helps reduce severe symptoms and improves your overall ability to stay active.
To get the most benefit, you should take Digoxin consistently at the exact same time every day, as prescribed by your doctor. You can take this medicine with or without food, but it is best to establish a consistent routine to keep steady levels in your body. Incorporating heart-healthy diet changes, such as reducing salt intake, can significantly support your treatment results.
While taking Digoxin, some people may experience mild side effects like mild nausea, dizziness, or headaches. However, you must contact your doctor immediately if you face specific serious side effects, such as changes in your vision, severe vomiting, or an unusually slow or irregular pulse.
Do not take this if you have specific heart rhythm issues, such as ventricular fibrillation. Before starting this medicine, tell your doctor if you have kidney disease, thyroid disorders, or low levels of potassium or magnesium in your blood. Your doctor will help determine if this medication is safe for your specific condition.
This medicine can interact with several other drugs, including certain blood pressure medications, antacids, and calcium supplements, which can alter its levels in your body. If you are pregnant, breastfeeding, or an older adult, consult your doctor to ensure this medication is safe for your specific situation.
Uses of Digoxin
Medicinal Benefits
Digoxin offers several benefits for people with heart conditions by improving heart performance, controlling heart rate, and helping reduce symptoms that interfere with daily activities.
- Improves Heart Pumping Function: Helps the heart pump blood more effectively throughout the body.
- Reduces Shortness of Breath: Improves circulation, which can help ease breathing difficulties associated with heart failure.
- Decreases Fatigue: Helps reduce tiredness and weakness, making everyday activities easier to perform.
- Enhances Physical Activity Tolerance: Supports better stamina for walking, climbing stairs, and other routine tasks.
- Helps Control Heart Rate: Slows and regulates rapid or irregular heartbeats, particularly in atrial fibrillation.
- Reduces Heart Palpitations: Helps minimise the sensation of fluttering, pounding, or racing heartbeats.
- Promotes Stable Heart Function: Supports long-term management of heart failure and other cardiac conditions.
- May Reduce Hospitalisations: By helping prevent worsening symptoms, it can lower the likelihood of emergency medical visits and hospital admissions.
Directions for Use
Take Digoxin exactly as prescribed by your doctor to ensure the medicine works effectively and safely. Following the recommended dosage instructions and maintaining a consistent dosing schedule can help achieve the best treatment results.
- Swallow the tablet whole with a full glass of water. Do not crush, chew, or break the tablet unless specifically advised by your doctor.
- If you are taking the liquid form of this medicine, use the marked measuring syringe or spoon provided with the product; do not use a regular household spoon.
- Take this medicine at the exact same time every day to maintain a steady level in your blood.
- Always follow your doctor's exact instructions regarding your schedule and dose. Do not change your dose or stop taking this medication without consulting your healthcare provider.
Storage
Side Effects of Digoxin
Common Side Effects (Usually mild):
Mild nausea or loss of appetite
Dizziness or lightheadedness
Mild headache
Mild diarrhoea or stomach discomfort
Serious Side Effects (Call a doctor right away):
Severe nausea, persistent vomiting, or severe diarrhea
Visual changes, including blurred vision, yellow-green halos around objects, or sensitivity to light
An unusually slow, fast, or irregular heartbeat
Confusion, extreme drowsiness, or unusual mood changes
Allergic reactions like skin rash, itching, or swelling of the face, lips, or throat
Medicines Containing this Salt
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Drug Warnings
Get regular blood tests: Your doctor will need to order regular blood tests to check the levels of the medicine in your blood, as well as your kidney function and electrolyte levels.
Check your pulse before every dose: If your pulse is unusually slow (below 60 beats per minute or the limit set by your doctor), hold your dose and call your healthcare provider immediately.
Watch for signs of toxicity: Be vigilant for early signs of build-up in your body, such as sudden loss of appetite, nausea, or visual disturbances (like seeing yellow halos).
Do not switch brands: Different brands of this medication can absorb differently in your body. Always consult your pharmacist or doctor before switching to a different manufacturer.
Inform all healthcare providers: Make sure your dentist, surgeon, and all doctors know you are taking Digoxin before any medical procedures.
Drug Interactions
Drug-Drug Interactions
Certain medicines can affect how Digoxin works or increase the risk of side effects and toxicity. Inform your doctor about all prescription medicines, over-the-counter products, vitamins, and herbal supplements you are taking before starting treatment:
- Taking this medicine with certain water pills (diuretics) can lower your potassium levels, increasing the risk of toxicity.
- Heart medications like amiodarone, verapamil, or quinidine can raise the levels of Digoxin in your blood, requiring a lower dose.
- Certain antibiotics (like erythromycin or clarithromycin) can increase the absorption of this medicine, raising the risk of side effects.
- Antacids and cholesterol-lowering drugs (like cholestyramine) can bind to this medicine in your stomach, reducing its effectiveness. Take them at least 2 hours apart.
Drug-Food Interactions
Some foods and dietary substances may influence the absorption or safety of Digoxin. Following your healthcare provider's dietary recommendations can help ensure the medicine works effectively and safely:
- High-fiber foods (like bran) can decrease the amount of medicine absorbed by your body if eaten at the same time as your dose.
- Licorice (specifically real black licorice containing glycyrrhizin) can lower potassium levels and increase the risk of irregular heartbeats while taking this medicine.
Drug-Disease Interactions
Certain medical conditions may affect how your body responds to Digoxin and may require dose adjustments or closer monitoring. Tell your doctor about your complete medical history before taking this medicine, especially if you have any of the following conditions:
- Kidney disease: Since your kidneys clear this medicine from your body, impaired kidney function can cause the drug to build up to dangerous levels.
- Thyroid disorders: An underactive thyroid can slow down how your body processes this medicine, while an overactive thyroid can speed it up, requiring careful dose adjustments.
- Electrolyte imbalances: Low potassium or magnesium, or high calcium levels, significantly increase your risk of severe heart rhythm side effects.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
unsafeYou are recommended to avoid consumption of alcohol with Digoxin as it may increase drowsiness and reduce the amount of Digoxin in blood, leading to abnormal heart function.
Pregnancy
cautionTablet: It is a Category C pregnancy drug and is to be given to pregnant women only if it is needed and prescribed by a doctor.
Breast Feeding
safe if prescribedTablet: It is safe for breastfeeding mothers if prescribed by a doctor.
Driving
cautionDigoxin may cause dizziness, yellow or blurred vision in some people. So, make sure you are not affected before driving or operating machinery.
Liver
safe if prescribedDigoxin is considered safe for use if you have liver conditions. However, if you have concerns, consult your doctor before taking Digoxin.
Kidney
cautionDigoxin is excreted through the kidneys. Hence, if you have kidney problems, inform your doctor. Your doctor may adjust the dose or prescribe a suitable alternative based on your condition.
Children
cautionPaediatric solution is to be used in children in doses as prescribed by a child specialist.
Habit Forming
Diet & Lifestyle Advise
- Monitor your potassium intake: Low potassium levels in your body can increase the risk of side effects during treatment. Eat potassium-rich foods like bananas, oranges, and leafy greens, but talk to your doctor before taking potassium supplements.
- Limit your sodium (salt) intake: Reducing dietary sodium helps manage fluid buildup and high blood pressure, making it easier for your heart to pump.
- Check your pulse daily: Learn how to take your pulse. Your doctor may advise you to avoid taking your dose if your heart rate falls below a certain number (usually 60 beats per minute).
- Avoid excessive calcium and fiber: Eating foods very high in dietary fiber right when you take your medicine can reduce its absorption. Try to take your dose at least two hours before or after high-fiber meals.
Special Advise
- Regular blood tests are advised while taking Digoxin to monitor digoxin levels in the blood, potassium levels and kidney functioning.
- Low salt diet and regular exercise are recommended along with Digoxin for effective results.
- A regular electrocardiogram (ECG) should be done to see the effect of Digoxin on your heartbeat.
Patients Concern
Disease/Condition Glossary
Heart failure: It is a chronic condition in which the heart is unable to pump blood as effectively as it should. Heart failure may occur due to certain conditions like high blood pressure, swelling or damage to the heart muscle, faulty heart valves or narrow arteries in the heart. Symptoms of heart failure include shortness of breath, tiredness, a fast heartbeat and swollen legs.
Arrhythmia (irregular heartbeat) is a condition in which your heart beats irregularly, too fast or too slow. Symptoms of irregular heartbeat include chest pain, shortness of breath, and fast or slow heartbeat. A heart rate of 60 to 100 beats per minute is generally considered normal.
FAQs
Digoxin is used to treat irregular heartbeats and manage the symptoms of heart failure. It works on the heart muscle directly and increases the force with which the heart muscle contracts with each heartbeat. Thereby, it makes the heart efficient in pumping blood around the body and slows down the rate at which the heart beats.
It may take several weeks for Digoxin to show its effect. You are recommended to continue taking Digoxin for as long as your doctor prescribes it, and do not stop taking Digoxin suddenly, as it may worsen your heart problems. However, if you experience any difficulty while taking Digoxin, please consult your doctor.
Yes, Digoxin may cause diarrhoea as a side effect. However, it is not necessary for everyone taking Digoxin to experience this side effect. You are recommended to drink plenty of fluids to avoid dehydration. Signs of dehydration include decreased urination or dark, strong-smelling urine. Also, do not take any other medicines to treat diarrhoea without consulting your doctor. If the condition persists or worsens, please consult your doctor.
Yes, Digoxin may cause yellow or blurred vision in some people. Therefore, exercise caution before driving or operating machinery.
No, you can eat normally. However, a balanced and healthy diet is advised for effective results.
You are not recommended to take more than the prescribed dose of Digoxin as it may cause Digoxin toxicity resulting in symptoms such as vomiting, nausea, loss of appetite, tiredness, dizziness or visual disturbances (more than usual yellow-green). However, if you experience any of these symptoms while taking Digoxin, please consult a doctor immediately.
No, you are not recommended to take amiodarone with Digoxin as co-administration of these two medicines may increase the levels of Digoxin in the blood resulting in Digoxin toxicity. However, please consult a doctor before taking other medicines with Digoxin so that the dose may be adjusted appropriately.
You are recommended to avoid taking Digoxin if you have severe heart problems, have a history of Stokes-Adams attacks (abrupt, short-lived unconsciousness caused by a sudden change in a heartbeat), obstructive cardiomyopathy (enlargement of the heart muscle) and Wolff-Parkinson-White syndrome (an extra electrical pathway causes a fast heartbeat).
Digoxin contains digoxin (a cardiac glycoside) that works directly on the heart muscle and increases the force with which the heart muscle contracts with each heartbeat. Thereby, it makes the heart efficient in pumping blood around the body and slows down the rate at which the heart beats.
The common side effects of Digoxin include diarrhoea, nausea, vomiting, dizziness, abnormal heartbeat, and skin rash. If these side effects persist or worsen, please consult your doctor.
Some blood pressure medications can interact with Digoxin by affecting your heart rate or potassium levels. It is highly important to review all your blood pressure prescriptions with your doctor or pharmacist to ensure they are safe to use together.
If your pulse is lower than 60 beats per minute, or below the specific limit your doctor has set, do not take your dose of Digoxin. Contact your healthcare provider immediately for guidance.
Digoxin has a narrow safety range, meaning the difference between an effective dose and a toxic dose is very small. Regular blood tests ensure that the level of medicine in your body remains in a safe, effective range and check that your kidneys are functioning well. Talk to your doctor if you have questions about your blood test results.
It is best to limit or avoid alcohol while taking Digoxin. Alcohol can worsen certain side effects like dizziness and can also negatively affect your heart rhythm and overall heart health. Talk to your doctor about what is safe for you.
Antacids can interfere with how your body absorbs Digoxin, making it less effective. If you need to take an antacid, take it at least 2 hours before or 2 hours after taking your heart medication.
Digoxin should only be used during pregnancy or breastfeeding if clearly needed and prescribed by your doctor. Your healthcare provider will carefully weigh the benefits against any potential risks to your baby. Talk to your doctor if you are pregnant or planning to become pregnant.
