Profiles of Drug Substances, Excipients, and Related Methodology, Volume 50 includes comprehensive profiles of four drug compounds: Sofosbuvir, Nateglinide, Linagliptin, and Dronedarone, providing comprehensive knowledge on their physical and chemical properties, synthesis and degradation pathways, analytical techniques for identification and quantification, separation methods, and pharmacology of drug substances. Finally, this volume includes a review article related to the Applications of Cyclodextrins in Pharmaceutical and Related Fields, along with a chapter on Fenamates Degradation. This information is highly valuable to professionals in the field, but having it all in one place is a great benefit to readers. The Profiles series encompasses five review articles and database compilations on various topics, including the physical profiles, analytical profiles, ADME profiles, methodologies related to the characterization, and methods of chemical synthesis of drug substances and excipients.