Shraddha P. Malpani, et al. “The Formulation and Evaluation of Gastro-Retentive Floating Tablets of Verapamil Hydrochloride”. Asian Journal of Pharmaceutical Research and Development, vol. 14, no. 3, June 2026, pp. 454-5, https://ajprd.com/index.php/journal/article/view/1837.