Medication changes after switching from CONCERTA® brand methylphenidate HCl to a generic long-acting formulation: A retrospective database study.

PLoS One · 2018 · PMC5831385 · PMID 29489906

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did not reach statistical significanceno p-value reported

the AG formulation of long-acting MPH was in the expected direction but did not reach statistical significance versus a null hypothesis of no difference, and there is concern about potential residual bias.

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