After reading this article you will learn about the various drugs acting on gastrointestinal tract. Sialagogues: Sialagogues or sialics are the salivary stimulants which increase the volume and fluidity of saliva. Uses: (i) Iatrogenic (drug-induced) hypoptyalism. (ii) Xerostomia (dryness of the mouth due to lack of normal secretion) resulting from other causes such as radiotherapy of the buccal cavity and [...]
The below mentioned article provides a notes on gastrointestinal tract. Gastrointestinal tract can be described as a specialized tube communicating with the external environment both at its upper and lower ends. There is regional specialization suited for the local functions. The main functions of GIT are: 1. Secretion: Exocrine—enzymes; endocrine— hormones of GI tract 2. Motility 3. Absorption 4. Storage [...]
The following points highlight the three major diseases of gastrointestinal tract:- 1. Diseases of the Mouth 2. Diseases of the Oesophagus 3. Peptic Ulcer. Gastrointestinal Tract: Disease # 1. Diseases of the Mouth: Lesions primarily nutritional in origin are angular stomatitis, cancrumoris, nutritional parotitis and nutritional glossitis. Glossitis is often a presenting feature in pellagra, the sprue syndrome, pernicious anemia [...]