What does “digoxin 0.125 mg” mean?
Digoxin tablets labeled “0.125 mg” contain 0.125 milligrams (125 micrograms) of digoxin per tablet. That is a common strength used for heart failure and certain abnormal heart rhythms.
What is digoxin used for?
Digoxin is used to treat:
- Heart failure, especially in people who still have symptoms despite other treatments.
- Certain abnormal heart rhythms (commonly atrial fibrillation or atrial flutter), to help control heart rate.
How is digoxin dosing usually prescribed?
The exact dose and schedule depend on the reason for use and patient factors such as kidney function, age, and interacting medicines. Digoxin has a narrow safety margin, so clinicians often dose carefully and monitor levels.
Why are digoxin levels important?
Digoxin can cause toxicity if blood concentrations get too high. Risk increases with:
- Reduced kidney function
- Older age
- Low potassium or magnesium
- Drug interactions (some medicines raise digoxin levels)
Doctors may order a digoxin blood test to confirm a safe therapeutic range, particularly when starting, changing dose, or if side effects occur.
What side effects or warning signs suggest digoxin toxicity?
Patients are typically told to watch for symptoms such as nausea, vomiting, loss of appetite, dizziness, confusion, visual changes (often seeing halos or unusual colors), and unusual or slow heart rhythms. If toxicity is suspected, urgent medical assessment is needed.
What should you know about interactions with digoxin?
Several drugs and electrolyte changes can increase digoxin risk. For example, some medicines that affect kidney clearance or heart-rate control can raise digoxin levels, and diuretics can lower potassium. Your prescriber or pharmacist can check your specific medication list.
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