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Xenazine Side Effects Center: Detailed Datasheet
Medically reviewed by Min Clinic Staff | Updated: January 2026
- Generic Name: tetrabenazine tablets
- Brand Name: Xenazine
- Drug Class: VMAT2 Inhibitors
Xenazine (Tetrabenazine Tablets) side effects drug center
Xenazine Side Effects Center
What Is Xenazine?
Xenazine (tetrabenazine) is a monoamine depletory used to treat Huntington's chorea (uncontrolled muscle movements). Xenazine reduces the amount of certain chemicals in the body that are overly active in people with Huntington's disease.
What Are Side Effects of Xenazine?
Common side effects of Xenazine include:
- insomnia,
- drowsiness,
- tired feeling,
- nausea,
- breast swelling or discharge,
- sleep problems (insomnia),
- feeling anxious or irritable, or
- cold symptoms such as stuffy nose, sneezing, and sore throat.
Tell your doctor if you have serious side effects of Xenazine including:
- extreme drowsiness;
- mood or behavior changes, thoughts about suicide or hurting yourself;
- restlessness, agitation, hyperactivity (mental or physical);
- tremor (uncontrolled shaking), restless muscle movements in your eyes, tongue, jaw, or neck;
- trouble swallowing;
- problems with balance;
- dizziness, fainting, fast or pounding heartbeat;
- very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, feeling like you might pass out;