Preparation, Characterization and Evaluation of Flavonolignan Silymarin Effervescent Floating Matrix Tablets for Enhanced Oral Bioavailability oleh Sher Ahmad, Jamshaid Ali Khan, Tabassum Naheed Kausar, Mater H. Mahnashi, Ali Alasiri, Abdulsalam A. Alqahtani, Thamer S. Alqahtani, Ismail A. Walbi, Osama M. Alshehri, Osman A. Elnoubi, Fawad Mahmood, Abdul Sadiq