Acute and subacute drug-induced movement disorders

Area of Science:

• Neurology
• Pharmacology

Background:

• Pharmacological agents can induce diverse movement disorders with varying timelines.
• These motor symptoms may occur independently or as part of broader neurological or systemic conditions.

Purpose of the Study:

• To review acute and subacute drug-induced movement disorders.
• To highlight key features for identification and diagnostic approaches.

Main Methods:

• Review of literature focusing on drug-induced movement disorders.
• Analysis of common etiological agents and underlying neurochemical mechanisms.

Main Results:

• Commonly implicated medications include dopamine receptor blockers, antidepressants, and anti-epileptics.
• Key diagnostic features include temporal relationship to medication, dose-dependency, and resolution upon drug cessation (except tardive syndromes).
• Mechanisms involve alterations in basal ganglia neurotransmission (dopamine, serotonin, etc.).

Conclusions:

• Drug-induced movement disorders are identifiable through careful medication history and recognition of characteristic patterns.
• This review focuses on acute/subacute presentations like dystonic reactions, akathisia, parkinsonism, and associated syndromes.