[...] “Methylphenidate Abuse and Psychiatric Side Effects” https://www.ncbi.nlm.nih.gov/pmc/articles/PMC181133/ Zito JM, Safer DJ, dosReis S, et al. Trends in the prescribing of psychotropic medications to preschoolers. JAMA. Boecker H1, Sprenger T, Spilker ME, Henriksen G, Koppenhoefer M, Wagner KJ, Valet M, Berthele A, Tolle TR. The runner's high: [...]