Lenz L, Di Sena V, Nakao F, Andrade G, Rohr M, Ferrari A. Comparative results of gastric submucosal injection with hydroxypropyl methylcellulose, carboxymethylcellulose and normal saline solution in a porcine model. Arq Gastroenterol. 2010;47:184-7 pubmed
..The median time for carboxymethylcellulose was not longer than normal saline solution. Hydroxypropyl methylcellulose, in the concentration of 0.25%, may be a durable alternative for submucosal injection. ..