Oral drug delivery is the most widely utilized route of administration among the entire route that has been explored for the systemic delivery of drug via various pharmaceutical products of different dosage form. The conventional tablet seems to be most popular because of its ease of transportation and low manufacturing cost as compare to others but poor patient compliance with whom experienced swallowing difficulties. In response to this mouth dissolving drug delivery system (MDDs) were developed as an alternative to tablet, capsule and syrup. A variety of MDDs like Mouth dissolving tablets (MDTs) and Mouth dissolving films (MDFs) were commercialized. This book describes the design and development of sildenafil citrate mouth dissolving film. As sildenafil citrate is a widely utilized drug for erectile dysfunction. This produced mouth dissolving film prepared by newer polymer Kollicoat protect and showed the good alternative for the other mouth dissolving film former, specially HPMC. Stevioside a natural sweetener used and showed the potency to mask the bitter taste of sildenafil citrate. Hence, MDF of sildenafil citrate provide good alternate to other available dosage form.

Transition metal dichalcogenides have been extensively studied during last two decades. These materials range from insulators to conductors and have a diversity of properties including charge density waves, superconductivity, activity and a rich intercalation chemistry. Tungsten Dichalcogenides find a wide range of applications in the field of catalysis and as a lubricant at high temperature and pressure.WTe2 has been widely used for solar energy conversion in Photoelectrochemical (PEC) solar cell due to small band gap and high chemical stability.

For most of the industry's existence, pharmaceuticals have preliminary consisted of simple, fast-acting chemical compounds that are dispensed orally or as injectables. During the last three decades, however, formulations that control the rate and target specific area of the body for treatment have become increasingly common. Nowadays, nanosuspension technology with mucoadhesive principle comes into front for achieving to increased uptake and accumulation of drug in affected region of targeted organ. In the present study, preparation of nanosuspension for famotidine and curcumin by solvent evaporation technique as well as media milling technique using stabilizers was initially adopted. Formulation and process variables were identified based on particle size analysis and in vitro drug release. Optimized nanosuspension was characterized by particle size analysis, zeta potential determination, scanning electron microscopy (SEM). In vivo and ex-vivo study of optimized mucoadhesive nanosuspension was performed using rat stomach and compared with marketed suspension for healing of peptic ulcer.