Tetrabenazine

58 interactions 4 explained in plain English
Also sold as: Xenazine Xenazine®
About Tetrabenazine

Tetrabenazine is used to treat chorea (sudden movements that you cannot control) caused by Huntington's disease (an inherited disease that causes the progressive breakdown of nerve cells in the brain). Tetrabenazine is in a class of medications called vesicular monoamine transporter 2 (VMAT2) inhibitors. It works by ch… Read the full Tetrabenazine drug information page →

Dr. Brian Staiger, PharmD, BCPS
Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Jun 30, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Linezolid Injection Deutetrabenazine Sertraline Dasatinib Oxaliplatin Injection Amisulpride Injection
2 Contraindicated 56 Major
All (58) Contraindicated (2) Major (56)

Major

Tetrabenazine Levofloxacin Levaquin Increased risk of QT interval prolongation Details Tetrabenazine Levofloxacin Injection Levaquin Increased risk of QT interval prolongation Details Tetrabenazine Loperamide Diamode An increased risk of QT interval prolongation, which may increase risk of cardiotoxicity (torsade de pointes, cardiac arrest) Details Tetrabenazine Mefloquine Lariam® An increased risk of QT interval prolongation Details Tetrabenazine Metronidazole Flagyl An increased risk of QT interval prolongation Details Tetrabenazine Metronidazole Injection Flagyl An increased risk of QT interval prolongation Details Tetrabenazine Metronidazole Topical MetroCream® An increased risk of QT interval prolongation Details Tetrabenazine Metronidazole Vaginal MetroGel® Vaginal An increased risk of QT interval prolongation Details Tetrabenazine Moxifloxacin Avelox Increased risk of QT interval prolongation Details Tetrabenazine Moxifloxacin Injection Avelox Increased risk of QT interval prolongation Details Tetrabenazine Moxifloxacin Ophthalmic Moxeza® Increased risk of QT interval prolongation Details Tetrabenazine Octreotide Bynfezia An increased risk of QT interval prolongation Details Tetrabenazine Octreotide Injection Bynfezia An increased risk of QT interval prolongation Details Tetrabenazine Ofloxacin Floxin® An increased risk of QT interval prolongation Details Tetrabenazine Ofloxacin Ophthalmic Ocuflox An increased risk of QT interval prolongation Details Tetrabenazine Ofloxacin Otic Floxin® Otic An increased risk of QT interval prolongation Details Tetrabenazine Olodaterol Oral Inhalation Striverdi An increased risk of QT interval prolongation and an increased risk of ventricular arrhythmias Details Tetrabenazine Oxaliplatin Injection Eloxatin® Increased risk of QT-interval prolongation Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.