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A profile of methylphenidate exposures.
R Foley1, R Mrvos, E P Krenzelok
1University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania, USA.
Journal of Toxicology. Clinical Toxicology
|February 24, 2001
Summary
Methylphenidate exposures in children often result from accidental ingestion or incorrect dosing. However, all methylphenidate exposures, including abuse cases, led to favorable outcomes, with low pediatric doses showing no adverse events.
Area of Science:
- Pharmacology
- Toxicology
- Pediatrics
Background:
- Methylphenidate is a common medication for attention deficit hyperactivity disorder (ADHD) in children.
- Approximately 2.8% of US youths aged 5-18 use methylphenidate.
- Limited data exists on the demographics and outcomes of methylphenidate exposures.
Purpose of the Study:
- To characterize the demographics and outcomes of human methylphenidate exposures.
- To identify patterns in intentional and unintentional methylphenidate exposures.
Main Methods:
- Retrospective review of methylphenidate exposure cases reported to a poison control center in 1998.
- Analysis of patient demographics, exposure reason, dose, clinical effects, and outcomes.
Main Results:
- 113 cases of methylphenidate human exposure were identified.
- In children under 12, exposures commonly involved unintentional ingestion, excessive self-administration, or caregiver error.
- Adolescents and adults showed a higher incidence of methylphenidate abuse.
Conclusions:
- All methylphenidate exposures, irrespective of cause or dose, resulted in favorable outcomes.
- Pediatric exposure doses below 1 mg/kg were not linked to adverse events.
- Understanding exposure patterns can inform prevention strategies for methylphenidate toxicity.