Lanoxin

Digoxin, the active ingredient in Lanoxin, is a cardiac glycoside presented as a tablet for oral use. It provides a positive inotropic effect and is employed in the management of heart failure and certain atrial arrhythmias in adult patients, improving cardiac output and symptom control.

GNH USA supplies Lanoxin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable logistics for global distribution, ensuring timely delivery to healthcare providers.

Digoxin acts on the cardiac conduction system and myocardial contractility, making it useful in several cardiovascular conditions.

- Heart failure: improves cardiac output and reduces symptoms in patients with reduced ejection fraction. - Atrial fibrillation: helps control ventricular rate and may restore sinus rhythm in certain cases. - Atrial flutter: assists in rate control and can aid conversion to sinus rhythm.

Digoxin may cause a range of adverse reactions, varying from mild to potentially life‑threatening.

Common Side Effects: - Nausea: mild gastrointestinal upset. - Vomiting: occasional emesis. - Diarrhea: loose stools. - Fatigue: generalized tiredness. - Visual disturbances: blurred or yellow‑green vision.

Serious or Rare Side Effects: - Cardiac arrhythmias: potentially fatal rhythm disturbances. - Hyperkalemia: elevated serum potassium levels. - Severe bradycardia: markedly slowed heart rate.

When prescribing digoxin, clinicians should consider several safety measures to minimize risk.

- Dose adjustment: reduce dose in renal impairment or elderly patients. - Electrolyte monitoring: correct hypokalemia, hypomagnesemia, and hypercalcemia before therapy. - Drug level testing: measure serum digoxin concentration to avoid toxicity. - Cardiac monitoring: observe for new arrhythmias, especially in patients with pre‑existing conduction disease. - Pregnancy and lactation: use only if benefit outweighs risk; category C. - Store at ambient temperature: keep tablets below 25 °C in original container, protect from moisture.

Digoxin interacts with several medicines that can alter its plasma concentration or cardiac effects.

Major Interactions (Avoid): - Amiodarone: markedly increases digoxin levels, risk of toxicity. - Quinidine: raises digoxin concentration and may precipitate arrhythmias. - Verapamil: enhances digoxin effect and can cause bradycardia.

Moderate Interactions (Monitor Closely): - Diuretics (e.g., furosemide, thiazides): may cause electrolyte shifts that predispose to toxicity. - ACE inhibitors or ARBs: can increase digoxin levels by reducing renal clearance. - Beta‑blockers: additive effect on heart rate and AV nodal conduction.