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Tardive Dyskinesia

Drug-induced involuntary movement disorder

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Nöroloji department. Book Appointment →

What is Tardive Dyskinesia?

Tardive dyskinesia results from chronic blockade of dopamine D2 receptors causing receptor supersensitivity and dyskinetic movements.

Onset typically occurs after months to years of antipsychotic use, but can develop with shorter exposures, especially with first-generation neuroleptics.

Diagnosis is clinical, supported by Abnormal Involuntary Movement Scale (AIMS) and exclusion of other movement disorders.

Newer VMAT2 inhibitors (valbenazine, deutetrabenazine) have transformed treatment, providing significant symptom reduction.

Symptoms

Tongue thrusting or lip smacking
Chewing movements and grimacing
Choreiform movements of fingers, hands, and arms
Truncal twisting or pelvic thrusting
Foot tapping and difficulty maintaining a posture
Rapid eye blinking or blepharospasm

Risk Factors

Long-term use of first-generation antipsychotics (haloperidol, chlorpromazine)
Cumulative exposure to dopamine receptor blockers including metoclopramide
Older age (significantly increased risk over 60)
Female sex (postmenopausal especially)
Diabetes, mood disorders, and substance abuse
Higher antipsychotic doses and treatment duration

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • New abnormal facial or limb movements while on antipsychotic medication
  • Movements that persist or worsen after dose reduction
  • Difficulty eating, speaking, or breathing due to movements
  • Social embarrassment or functional impairment from movements
  • Routine monitoring during long-term antipsychotic therapy
  • Discussion of medication options to reduce risk

Treatment Methods

01
Discontinue or reduce offending dopamine blocker if clinically feasible
02
Switch to clozapine or quetiapine (lowest tardive risk) when antipsychotic still needed
03
VMAT2 inhibitors: valbenazine 40-80 mg/day or deutetrabenazine 12-48 mg/day
04
Off-label options: tetrabenazine, amantadine, vitamin E (limited evidence)
05
Botulinum toxin for focal dyskinesia (e.g., blepharospasm, oromandibular)
06
Deep brain stimulation in selected severe refractory cases

Which Department to Visit?

You can visit our Nöroloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.