Development and validation of R-HPLC method for simultaneous determination of fexofenadine HCl and paracetamol for their quantification from multiparticulate drug delivery system - Muhammad Sajid Nawaz; Muhammad Hasnat; Muhammad Zaman; Majid Alhomrani; Abdulhakeem S. Alamri; Waqar Siddique; Muhammad Amer; null Qurat-ul-ain shoaib; Kanwal Shahzadi (Acta Chromatographica, 2025)