Avbunudiogba JA. Modification of the Release Profiles of Theophylline Matrix Tablets by inclusion of Water Leachable or Water Swellable Excipients. NIJOPHASR [Internet]. 2020 Aug. 17 [cited 2024 Nov. 22];8(2):107-13. Available from: https://nijophasr.net/index.php/nijophasr/article/view/308