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[Methylphenidate, tics and compulsions]
1Service de Psychiatrie Infanto-Juvénile, Hôpital de Jour, Saint-Brieuc.
Abstract:
Obsessive compulsive (OC) symptoms following methylphenidate (MPH) administration are seldom reported and usually not even mentioned among its adverse effects. We report here a case of MPH-induced OC symptoms which began ten months after the treatment was initiated and that were exacerbated 14 months later. This delay and the symptoms fluctuations might lead out of the right diagnostic though tic occurrence could then correct. Cross-sensitization between stress and psychostimulants might as well explain the long delayed onset of obsessive compulsive symptoms as their fluctuation both along time and contexts.
Insights
Methylphenidate (MPH) rarely causes obsessive-compulsive (OC) symptoms, which can be delayed and fluctuate. This case highlights the importance of considering MPH as a potential cause for delayed-onset OC symptoms, even with symptom variability.
Area of Science:
- Neuroscience
- Psychiatry
- Pharmacology
Background:
- Methylphenidate (MPH) is a common psychostimulant for treating ADHD.
- Adverse effects of MPH are well-documented, but obsessive-compulsive (OC) symptoms are rarely reported.
Observation:
- A case of delayed-onset OC symptoms emerged ten months after initiating MPH treatment.
- These symptoms fluctuated and were exacerbated 14 months later.
- Tic occurrence was noted, potentially complicating diagnosis.
Findings:
- The delayed onset and fluctuating nature of OC symptoms may hinder accurate diagnosis.
- Cross-sensitization between stress and psychostimulants could explain the delayed and variable presentation of OC symptoms.
Implications:
- Clinicians should consider MPH as a potential cause of delayed-onset OC symptoms, even with atypical presentation.
- Understanding the interaction between stress, psychostimulants, and OC symptoms is crucial for diagnosis and management.