About Lanoxin Injection 500mcg
Lanoxin Injection 500mcg contains Digoxin, a cardiac glycoside used to treat heart failure and atrial fibrillation.
Lanoxin Injection 500mcg Uses
- Treatment of heart failure with reduced pumping strength, particularly when symptoms persist despite standard oral therapy
- Control of ventricular rate in chronic atrial fibrillation and atrial flutter
- Management of certain supraventricular arrhythmias in a hospital setting
- Rapid digitalization in patients who cannot take medicine by mouth
- Used by intravenous or intramuscular route when oral digoxin is not suitable or urgent action is needed
Lanoxin Injection 500mcg Benefits
- Strengthens the force of heart muscle contraction, known as a positive inotropic effect
- Slows an overly fast heart rate by acting on the heart's electrical conduction system
- Improves exercise tolerance and reduces hospital readmissions in chronic heart failure
- Provides a faster onset of action than the oral tablet during acute care
- Has decades of established clinical use with predictable dosing when properly monitored
What Experts Say
Cardiologists reserve digoxin injection for situations needing rapid control of heart rate or a quick boost in heart muscle contraction, most often in hospitalized patients with acute heart failure or fast atrial fibrillation. The injectable form acts within minutes to hours, faster than the oral tablet, making it useful when oral dosing is not practical.
Digoxin carries one of the narrowest therapeutic index profiles among cardiac drugs, meaning the gap between an effective dose and a toxic dose is small. Doctors calculate the dose using body weight, kidney function and age, then confirm it with serum digoxin level testing, since a slightly elevated level can trigger nausea, visual disturbances or dangerous rhythm changes.
Because of this narrow safety margin, digoxin injection is given under close monitoring, often with continuous heart tracing during and after the dose. Long term use needs regular blood tests, particularly in older adults or anyone with reduced kidney function, since digoxin clears through the kidneys. Patients are told to report loss of appetite, confusion or an irregular heartbeat right away.
Drug Class
Lanoxin Injection 500mcg Uses in Urdu
- دل کی ناکامی (ہارٹ فیلیئر) کے علاج میں استعمال ہوتا ہے
- دل کی بے ترتیب دھڑکن یعنی ایٹریل فبریلیشن میں دل کی رفتار کو قابو میں رکھنے کے لیے
- دل کے پٹھوں کی سکڑنے کی طاقت بڑھانے کے لیے
- ہسپتال میں فوری علاج کی ضرورت پڑنے پر ڈاکٹر کی نگرانی میں لگایا جاتا ہے
Lanoxin Injection 500mcg formula
How to use Lanoxin Injection 500mcg?
- Administered only by a doctor or trained healthcare staff in a hospital or clinic setting, never self injected at home
- Given by slow intravenous injection or by intramuscular injection, with intravenous preferred in urgent situations
- Dose is individualized based on body weight, kidney function, age and the specific heart condition being treated
- Given as a loading dose followed by smaller maintenance doses when rapid digitalization is needed
- Heart rhythm and vital signs are monitored during and after each injection
Drug Interactions
- Diuretics: Furosemide and other potassium wasting diuretics can lower potassium levels and increase digoxin toxicity risk
- Amiodarone: Raises digoxin blood levels significantly, usually requiring a lower digoxin dose
- Verapamil and Other Calcium Channel Blockers: Can increase digoxin levels and add to its heart rate slowing effect
- Quinidine: Increases digoxin blood levels and toxicity risk
- Spironolactone: Can interfere with digoxin blood level testing and alter its clearance
- Antacids and Cholestyramine: Can reduce digoxin absorption when taken close together
- Erythromycin and Certain Antibiotics: Can increase digoxin absorption and blood levels in some patients
Risks and warnings
- Digoxin has a narrow therapeutic index, so the difference between an effective dose and a toxic dose is small
- Signs of digoxin toxicity include nausea, vomiting, loss of appetite, visual disturbances such as yellow or green halos, confusion and irregular heartbeat
- Low potassium, low magnesium or high calcium levels increase the risk of toxicity even at normal digoxin doses
- Reduced kidney function raises digoxin levels in the blood and increases toxicity risk, so dose adjustment is required
- Should be used with caution in elderly patients, who are more sensitive to its effects
- Should be avoided in certain rhythm disorders such as ventricular fibrillation and in patients with hypertrophic cardiomyopathy unless a specialist advises otherwise
- Regular blood tests for digoxin level, potassium and kidney function are required during treatment
Lanoxin Injection 500mcg Side Effects
- Nausea and vomiting
- Loss of appetite
- Diarrhea
- Visual disturbances including blurred vision or a yellow or green tinge to vision
- Dizziness and headache
- Confusion, especially in older adults
- Irregular heartbeat or palpitations
- Slow heart rate known as bradycardia
- Fatigue and weakness
- Skin rash in rare cases
Storage Conditions
- Store ampoules below 30°C, away from direct sunlight and heat
- Do not freeze
- Keep ampoules in their original box until ready for use, to protect from light
- Once an ampoule is opened, use it immediately and discard any unused solution
- Keep out of reach of children
- Do not use if the solution looks discolored or contains particles
