Tølløfsrud 2006.

Methods	A patient report of death caused by heart failure (acute dilated cardiomyopathy) during methylphenidate treatment
Participants	Diagnosis of ADHD: ICD‐10 (subtype: not stated) Age: 17 years old IQ: no intellectual disability Sex: male Ethnicity: not stated Country: Norway Comorbidity: Tourette's syndrome Comedication: none Sociodemographics: not stated
Interventions	Methylphenidate type: not stated Methylphenidate dosage: 15 mg Administration schedule: 3 times daily Duration of treatment: 10 years Treatment compliance: not stated
Outcomes	Serious adverse events: Heart failure resulting in death
Notes	Key conclusions of the study authors: heart failure leading to death, possibly caused by methylphenidate treatment Comments from the study authors: dilated cardiomyopathy can be a rare side effect of methylphenidate use Funding/vested interest/authors' affiliations: none Supplemental information regarding ADHD diagnosis and IQ received through personal email correspondence with the authors in November 2013 (Tølløfsrud 2013 [pers comm])