Cakin‐Memik 2010.

Methods	A patient report of a 14‐year‐old male with ADHD who presented with priapism after administration of immediate‐release methylphenidate. When the usage of immediate‐release methylphenidate was terminated, priapism spontaneously disappeared
Participants	Diagnosis of ADHD: not stated (subtype: not stated) Age: 14 years old IQ: not stated Sex: male Ethnicity: not stated Country: Turkey Comorbidity: no Comedication: no Sociodemographics: not stated
Interventions	Immediate‐release methylphenidate started at 10 mg/day and after 2 months increased to 20 mg/day Administration schedule: not stated Duration of treatment: 2 months and 3 days Treatment compliance: not stated
Outcomes	Serious adverse events: Priapism: up to 3‐4 episodes per day lasting 40 to 45 minutes beginning 3 days after the dose was increased to 20 mg/day
Notes	Funding/vested interests/authors' affiliations: not stated Key conclusions of the study authors: in the case of immediate‐release methylphenidate prescription to adolescent male patients, the probability of the development of priapism should not be ignored The lack of inquiry and reporting of this side effect can lead to potentially irreversible impotence. Thus, it is important that the clinician be aware of this side effect and counsel the children/adolescents and their families about its occurrence in order to improve the adaptation of methylphenidate treatment Comments from the study authors: it is important to note that, as in this case, adolescent males may be too embarrassed to report this side effect particularly when they do not know it may be linked to methylphenidate