Professor Abdulrahman AlMajed obtained a Bachelor of Pharmaceutical Sciences from College of Pharmacy, King Saud University, Riyadh, Saudi Arabia in 1990 and a Ph.D. in the field of Pharmaceutical analytical Chemistry from the University of Bradford, UK, in 1997. He also received a Bachelor of Legislation from College of Legislation, Imam Mohammed Bin Saud University, Riyadh, Saudi Arabia. He was appointed as assistance professor in Pharmaceutical Chemistry Department at College of Pharmacy, King Saud University in 1998. He was promoted to the rank of associated professor in 2003. He was a head of Pharmaceutical Chemistry Department (2005-2019) (2015-2017). Since 2009, he is full professor of Pharmaceutical Analytical Chemistry. He was assistance secretary of Scientific Council at King Saud University and he is presently a member of Scientific Council in Princess Nourah Bint Abdul Rahman University and in Jouf University, Saudi Arabia. He also a member of Medical and health Sciences Committee of Qualification Recognition in Ministry of Education and a member of Patent Lawsuits Committee in Saudi Arabia. He is a member of several scientific and social Committees. He participated in several national and international conferences and symposia. Prof. Almajed has taught courses in the field of Pharmaceutical Analysis at both the undergraduate and postgraduate levels at College of Pharmacy. He is recently appointed as the Editor-In-Chief of the book series Profiles of Drug Substances, Excipients, and Related Methodology. He published 10 chapters in the series. Dr. AlMajed published over 65 research papers in the field of Pharmaceutical Analysis. His research is focused on determination and validation of pharmaceutical compounds in dosage forms or/and in biological fluids by analytical techniques including: HPLC, electrophoresis, spectrophotometry, spectrofluorometry, voltammetry. His research also includes resolution and quantitation of the R-(-)- and S-(+)- enantiomers of pharmaceutical compounds in dosage forms or/and in biological fluids using chiral stationary phases.

• PrefaceAbdulrahman Al-Majed1. SofosbuvirHassan Mohamed El-Said Azzazy, Jude Majed Lababidi and Mohamed Fawzy Kabil2. NateglinideManal M. Alanazi3. LinagliptinHassan Mohamed El-Said Azzazy, Mohamed Fawzy Kabil and Jude Majed Lababidi4. DronedaroneAhmed Hassan H. Bakheit, Mohamed W. Attwa, Hamad M. Alkahtani, Fatemah S. Albalawi, Yousef A. Bin Jardan and Abdulrahman AlMajed5. Cyclodextrins and their Applications in Pharmaceutical and Related FieldsZubair Anwar6. DEGRADATION OF FENAMATESMuhammad Ali Sheraz