Ophawatanasin T, Thepsuwan A, Nimmaanrat S. Nalbuphine: Core Facts and Practical Uses. PSU Med J [internet]. 2025 Dec. 4 [cited 2026 Oct. 9];5(3):169-78. available from: https://he01.tci-thaijo.org/index.php/PSUMJ/article/view/279804