Despite our study's limitations, as colocalization was not performed, L‐NOARG appears to reduce c‐Fos labeling in NADPH‐d/nNOS‐positive interneurons, consistent with its reported antidyskinetic effects in L‐DOPA–induced dyskinesia (Padovan‐Neto et al. 2015). The gene discussed is FOS; the disease is Dyskinesia.