Pharmaceutico-analytical standardization, characterization, and clinical evaluation of sedative and hypnotic effects of Roghan Banāfshā’ (Viola odorata oil) in patients with primary insomnia: QUALITY CONTROL AND SEDATIVE EFFECTS OF ROGHAN BANĀFSHĀ’ (VIOLA ODORATA OIL) IN PRIMARY INSOMNIA. IJTK. 2026;25(8):781-791. doi:10.56042/ijtk.v25i8.23385