Tetrandrine Beads Using Alginate/polyvinyl Alcohol and Alginate‑carboxymethyl Cellulose: Not Ideal as Colon‑targeted Dosage Form. Journal of Pharmaceutical Negative Results, [S. l.], v. 9, n. 1, p. 14–20, 2018. Disponível em: https://pnrjournal.com/index.php/home/article/view/121.. Acesso em: 19 jun. 2026.