Tetrabenazine is used in the treatment of hyperkinetic motor disorders with Huntington's chorea (a neurodegenerative genetic disorder that affects muscle coordination and leads to mental decline and behavioural symptoms) and tardive dyskinesia (uncontrolled twitching or jerking movement in face, tongue or other parts of the body).
How it works
Tetrabenazine belongs to class of medicines called vesicular monoamine transporter (VMAT) inhibitors. It maintains the chemical balance in the brain thereby reducing the involuntary muscle movements.
Common side effects
Nausea, Parkinson-like syndrome, Drowsiness, Anxiety, Confusion, Constipation, Decreased blood pressure, Depression, Diarrhoea, Difficulty in swallowing, Insomnia, Vomiting
- Inform your doctor if you are suffering from mild to severe liver disorder, a heart condition known as long QT syndrome and irregular heart rhythm.
- Seek immediate medical attention if you notice any symptoms of neuroleptic malignant syndrome characterized by mental changes such as confusion, hallucinations, stiffness in muscles and an increased body temperature.
- Do not drive or operate machinery as tetrabenazine may cause dizziness.
- Tell your doctor if you are or planning to become pregnant and/or breastfeeding.