Hoang Oanh Hua*, Thi Lan HuongTran 2026. Xanthine oxidase inhibitory effect of formula Er-miao tang combined with inhibitory and antioxidant activities of Phyllanthus amarus L. and Orthosiphon stamineus Benth. Vietnam Journal of Science, Technology and Engineering. 68, 3 (Sep. 2026). DOI:https://doi.org/10.31276/VJSTE.2025.0074.