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Drug reference

digitoxin

Na+/K+ ATPase inhibitor · Positive inotropic agent, Antiarrhythmic

Na+/K+ ATPase inhibitorPositive inotropic agent, Antiarrhythmic
CDSCO approved
EXCRETION
not curated
INTERACTIONS
12 major
SEVERE in our sources
PREGNANCY
not curated
Top interactionssee all 12
  • AdenosineSevereDatabaseDDInter
  • AmiodaroneSevereDatabaseDDInter
  • AtazanavirSevereDatabaseDDInter
  • Calcium ChlorideSevereDatabaseDDInter

Mechanism

Not yet extracted

Indications

heart failureatrial fibrillation

Dosing

Adult
Plasma concentration: 10–25 ng/mL.

Pharmacokinetics

Half-life
7 days
Protein binding
Digitoxin has a half-life of 7 days.
Metabolism
Digitoxin is partially converted to digoxin.

Side effects

Common
nauseadiarrheavisual disturbances (altered color perception, coronas)
Serious
  • proarrhythmic

Drug interactions

Adenosine
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Amiodarone
Severe
Database

Drug interaction classified as: distribution.

Source: DDInter

Atazanavir
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Calcium Chloride
Severe
Database

Clinical effect not specified

Source: DDInter

Calcium Glucoheptonate
Severe
Database

Clinical effect not specified

Source: DDInter

Calcium Gluconate
Severe
Database

Clinical effect not specified

Source: DDInter

Ceritinib
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Dolasetron
Severe
Database

Clinical effect not specified

Source: DDInter

Fingolimod
Severe
Database

Clinical effect not specified

Source: DDInter

Parathyroid Hormone
Severe
Database

Clinical effect not specified

Source: DDInter

Saquinavir
Severe
Database

Clinical effect not specified

Source: DDInter

Siponimod
Severe
Database

Clinical effect not specified

Source: DDInter

Related guidelines

Ask House about digitoxin

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: KD Tripathi 7e, Goodman & Gilman 14e·Verified: 2026-05-10 · House clinical team