N-Nitrosodimethylamine formation in metformin hydrochloride sustained-release tablets: Effects of metformin and hypromellose used in drug product formulation

Gugu Hao, Rong Hu, Xiaoqin Wang, Pan Gao, Lin Wang, Manhua Jiang, Libo Xin, Guoying Tan, Yanping Zhao, Fuzhou Sun, Dexin Chu, Jinqian Lv, Jingsong You, Fangfang Huang, Xue‐Zhi Song