Corrigall 1996.

Methods	A patient report of euphoria induced by methylphenidate in an 11‐year‐old boy diagnosed with hyperkinetic disorder
Participants	Diagnosis of ADHD: ICD‐10 hyperkinetic disorder Age: 11 years old IQ: no intellectual disability Sex: male Ethnicity: not stated Country: UK Comorbidity: not stated Comedication: not stated Sociodemographics: not stated
Interventions	Methylphenidate 10 mg/day for 4 weeks and then increased to 15 mg/day for 5 days Administration schedule: not stated Duration of treatment: 6 weeks Treatment compliance: abuse
Outcomes	Non‐serious adverse events: Methylphenidate induced euphoria on 15 mg/day. Symptoms discontinued after methylphenidate was withdrawn
Notes	Ethics approval: not stated Funding/vested interests: not stated Authors' affiliations: Maudsley Hospital, London Key conclusions of the study authors: euphoria induced by methylphenidate can occur in young prepubertal children and this may lead to abuse of medication Supplemental information regarding the boys' intellectual functioning received through personal email correspondence with the authors in October 2013 (Corrigall 2013 [pers comm])