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Excessive somnolence from aripiprazole in a child
Jennifer D Davenport1, Michelle W McCarthy, Marcia L Buck
1Walgreen Company, Deerfield, Illinois, USA.
Pharmacotherapy
|April 22, 2004
Summary
Aripiprazole, an atypical antipsychotic, caused severe prolonged somnolence in a pediatric patient. Further research is needed to establish safe and effective pediatric dosing for this medication.
Area of Science:
- Pediatric Pharmacology
- Neuroscience
- Clinical Psychiatry
Background:
- Aripiprazole is an atypical antipsychotic medication used to treat various psychiatric conditions.
- Oppositional defiant disorder is a behavioral disorder often treated with psychotropic medications in children.
- Establishing safe and effective dosing for pediatric populations is crucial for psychotropic medications.
Observation:
- A 9-year-old girl experienced prolonged and severe somnolence after a single 15-mg dose of aripiprazole.
- The somnolence began 3.5 hours post-administration and required 24-hour hospitalization for monitoring.
- Extensive medical workup, including physical examinations and laboratory tests, yielded normal results, attributing the somnolence to aripiprazole.
Findings:
- The observed somnolence was significantly more severe than typically reported in clinical trials (11% incidence).
- This case highlights a potential for severe adverse reactions to aripiprazole in pediatric patients, even at standard doses.
- Current pediatric dosing guidelines for aripiprazole may not be fully established or universally applicable.
Implications:
- This case underscores the need for careful monitoring of pediatric patients initiating aripiprazole treatment.
- Further clinical studies are essential to determine optimal and weight-based dosing strategies for aripiprazole in children.
- Understanding the full spectrum of aripiprazole's side effects in pediatric populations is critical for safe and effective clinical practice.