The book "Pharmaceutical Dosage Forms and Drug Delivery Systems" by Howard C. Ansel and Nicholas G. Popovich, fifth edition, provides a comprehensive overview of various dosage forms and drug delivery systems. The content is divided into 13 chapters, each focusing on different aspects of drug formulation and delivery. Key topics include an introduction to drugs and pharmacy, drug substances, biopharmaceutic considerations in dosage form design, pharmaceutical ingredients and formulation, peroral solids and controlled-release systems, oral solutions and suspensions, injections and biotechnology products, transdermal drug delivery systems, topical preparations, suppositories and rectal preparations, aerosols and inhalations, and miscellaneous preparations. The book also includes appendices with definitions of selected drug categories and pharmaceutical measurement techniques, along with an index for easy reference.The book "Pharmaceutical Dosage Forms and Drug Delivery Systems" by Howard C. Ansel and Nicholas G. Popovich, fifth edition, provides a comprehensive overview of various dosage forms and drug delivery systems. The content is divided into 13 chapters, each focusing on different aspects of drug formulation and delivery. Key topics include an introduction to drugs and pharmacy, drug substances, biopharmaceutic considerations in dosage form design, pharmaceutical ingredients and formulation, peroral solids and controlled-release systems, oral solutions and suspensions, injections and biotechnology products, transdermal drug delivery systems, topical preparations, suppositories and rectal preparations, aerosols and inhalations, and miscellaneous preparations. The book also includes appendices with definitions of selected drug categories and pharmaceutical measurement techniques, along with an index for easy reference.