Gastrointestinal (GI) pharmacology is concerned with the properties and actions of medications that influence the digestive system. These medications restore GI tract function that has been disrupted. The resolution of clinical pharmacology of medications used to treat the gastrointestinal system, starting with appetite stimulants, followed by emetics and antiemetics, and antidiarrheals, is frequently the focus of treatment of disorders affecting the gastrointestinal tract.
The branch of human physiology that deals with the physical function of the gastrointestinal (GI) tract is known as gastrointestinal physiology. The GI tract's role is to mechanically and chemically process ingested food, extract nutrients, and eliminate waste materials. Gastrointestinal pathology is a surgical pathology subspecialty that focuses on the diagnosis and characterisation of cancerous and non-neoplastic diseases of the digestive system and accessory organs including the pancreas and liver.