Antipsychotic-induced paroxysmal perceptual alteration

Area of Science:

• Neuroscience
• Psychiatry
• Pharmacology

Background:

• Antipsychotic medications are widely used to manage psychiatric disorders.
• Paroxysmal perceptual alteration (PPA) is an uncommon adverse effect associated with antipsychotic use.
• Understanding the specific triggers and effective management strategies for PPA is crucial.

Observation:

• A patient experienced recurrent episodes of paroxysmal perceptual alteration.
• These alterations were linked to the use of typical antipsychotic medications.
• A specific symptom involved vivid perception of patterns on surfaces.

Findings:

• Substitution of typical antipsychotics with olanzapine led to a reduction in the frequency and duration of PPA episodes.
• This suggests olanzapine may be a viable alternative for patients experiencing PPA with other antipsychotics.
• The vivid perception of surface patterns appears to be a characteristic feature of this condition.

Implications:

• This case highlights the potential benefit of switching to atypical antipsychotics like olanzapine for managing PPA.
• Further research is warranted to explore the neurobiological mechanisms underlying PPA and its response to different antipsychotics.
• Clinicians should consider PPA in patients on antipsychotics presenting with unusual perceptual disturbances.