Phytochemical Screening, Antioxidant Activity, and Toxicity of Imperata Cylindrica Root Extract Using the Brine Shrimp Lethality Test. Faculty of Medicine, Tadulako University, P-ISSN: 2407-8441 and e-ISSN 2502-0749. 2026;12(3):422-432. doi:10.22487/6s03ac45