New drug delivery systems like Lymphatic Targeted delivery Nanocarriers, Novel Nasal and Pulmonary Drug Delivery Systems, Ocuserts, Oral Controlled Drug Delivery and porous Microspheres offers better drug action than conventional systems. They fulfill high bioavailability of the administered drug candidates with improved therapeutic efficacy and reduced toxicity. Newer drug delivery platforms patience also improves compliance and medication adherence. This book encompasses concepts and applications of advanced pharmaceutical dosage forms, viz. nanoparticles, lymphatic DDS nasal and pulmonary DDS, porous microspheres including their applications in therapeutics.