9.4. Analysis.

Comparison 9 Patient reports/series: number of participants with serious adverse events, Outcome 4 Urogenital system: priapism.

Urogenital system: priapism
Study
Cakin‐Memik 2010	A case report of a 14‐year‐old male with attention deficit hyperactivity disorder (ADHD) who presented with priapism after administration of immediate‐release methylphenidate. When the usage of immediate‐release methylphenidate was terminated, priapism spontaneously disappeared
Schwartz 2004	A case report of a 15‐year‐old white male with ADHD (inattention subtype) who experienced painful erections two weeks after beginning sustained release (OROS) MPH and repeated painful erections that increased with increased doses (during withdrawal). MPH use for more than 2 months. It is likely that withdrawal from OROS methylphenidate was the cause of this adolescent boy's priapism. He was embarrassed to disclose the problem to an adult until it became quite severe. It is possible that this adverse event is under‐reported due to sensitivity and embarrassment of young people