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Drug reference

Tetrabenazine

Antipsychotic · Agent for movement disorders

Also known as XENAZINE

AntipsychoticAgent for movement disorders
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
12 major
SEVERE in our sources
PREGNANCY
l BREAST FEEDING
FDA category + note
Top interactionssee all 12
  • AlimemazineSevereDatabaseDDInter
  • AmiodaroneSevereDatabaseDDInter
  • AmisulprideSevereDatabaseDDInter
  • AmoxapineSevereDatabaseDDInter

Mechanism

Tetrabenazine is a vesicular monoamine transporter 2 (VMAT2) inhibitor. It acts by depleting vesicular stores of dopamine in the central nervous system.

Indications

Chorea associated with Huntington’s diseaseSymptomatic treatment of Huntington’s diseaseTreatment of chorea associated with Huntington’s diseaseinvoluntary movement disordersHuntington’s choreatardive dyskinesiaTreatment of chorea associated with HD

Dosing

Adult
▶ BY MOUTH 4.1 Dystonias and other involuntary movements Nervous system 4 Essential tremor, chorea, tics, and related disorders Drugs used in essential tremor, chorea, tics, and related disorders Tetrabenazine p. 425 is mainly used to control movement disorders in Huntington’s chorea and related disorders.…

Side effects

Serious
  • hypotension
  • depression with suicidality
  • parkinsonism

Pregnancy & lactation

Pregnancy

l BREAST FEEDING

Drug interactions

Alimemazine
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Amiodarone
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Amisulpride
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Amoxapine
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Anagrelide
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Aripiprazole
Severe
Database

Drug interaction classified as: synergy.

Source: DDInter

Arsenic Trioxide
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Asenapine
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Bedaquiline
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Bepridil
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Brexpiprazole
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Bupropion
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Related guidelines

Other Antipsychotic drugs

Ask House about Tetrabenazine

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Sources: Goodman & Gilman 14e, BNF·Verified: 2026-05-13 · House clinical team