Drug Interaction Report

Amphotericin B Injection and Digoxin: Interaction Details

AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature

Digoxin

Cardoxin® Digitek Digitek® Digox Lanoxicaps® Lanoxin Lanoxin®
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Amphotericin B Injection

Abelcet AmBisome
Dr. Brian Staiger, PharmD, BCPS
Medically reviewed by
Updated Aug 8, 2026
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Interaction severity
Moderate
Can be significant — usually manageable with monitoring.
How we grade severity & evidence

Severity levels

  • Contraindicated: These should generally not be used together.
  • Major: Potentially serious — often needs a change or close monitoring.
  • Moderate: Can be significant — usually manageable with monitoring.
  • Minor: Usually limited clinical impact.

Evidence grades

  • Established: Well documented — supported by controlled studies or strong clinical data.
  • Probable: Good supporting evidence, though not definitively proven.
  • Suspected: Some evidence suggests this interaction, but it is not well established.
  • Possible: Limited or conflicting evidence; the interaction may occur.
  • Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.

Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.

Of 15 documented Amphotericin B Injection interactions, 5 are rated moderate — including this one.
Onset
delayed
Evidence
theoretical
Severity
Moderate

What happens

Hypokalemia and digitalis toxicity (nausea, vomiting, visual disturbances, cardiac arrhythmias)

Interaction Deep Dive

Hypokalemia following systemic amphotericin B therapy may facilitate digitalis toxicity. Potassium level monitoring along with cardiac function monitoring is indicated in patients receiving the combination. Potassium chloride supplementation may be necessary12.

Why it happens (mechanism)

Decreased serum potassium

Common questions

Can I take Amphotericin B Injection and Digoxin together?

Hypokalemia and digitalis toxicity (nausea, vomiting, visual disturbances, cardiac arrhythmias) Always confirm with your pharmacist or prescriber before making any change.

How serious is the Amphotericin B Injection and Digoxin interaction?

It is rated moderate. Can be significant — usually manageable with monitoring.

How quickly could this interaction happen?

The documented onset is "delayed". Effects tend to build up gradually over days to weeks.

How strong is the evidence for this interaction?

The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.

Questions for your pharmacist

  • Does my dose of Amphotericin B Injection or Digoxin need adjusting while I take them together?
  • What symptoms should prompt me to call you or my prescriber right away?
  • Does the timing of my doses matter for this combination?
  • Is there anything you'd monitor while I'm on both?

References (2)

  1. Miller RP & Bates JH: Amphotericin B toxicity: a follow-up report of 53 patients. Ann Intern Med 1969; 71:1089-1095. PubMed
  2. Product Information: Fungizone(R), amphotericin B injection. Apothecon, Princeton, NJ, 1998. DailyMed
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Beyond drug–drug

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This information is for education, not a substitute for professional medical advice. Do not start, stop, or change any medication without talking to your pharmacist or prescriber.