Semenenko, Andrii. “Nefopam Hydrochloride As a Component of Multimodal Analgesia in the Postoperative Period”. Pain medicine 5, no. 2 (June 30, 2020): 68–75. Accessed September 23, 2021. https://painmedicine.org.ua/index.php/pnmdcn/article/view/225.