Gastrointestinal Tract Toxicology

Gastrointestinal (GI) tract toxicology is a fundamental subject for tertiary students in toxicology, pharmacology, and medicine in Zambia. This topic covers the anatomy and physiology of the GI tract as a barrier and site for xenobiotic absorption, the pathophysiological mechanisms of GI injury (e.g., direct mucosal damage, altered motility, enzyme inhibition), and the clinical effects such as nausea, vomiting, diarrhea, and ulceration. For Zambian university and college learners, mastering GI toxicology is essential for diagnosing and managing oral poisonings, which constitute a majority of cases. It supports exam preparation and readies students for clinical practice, forensic toxicology, and public health roles, where understanding GI toxicants can lead to effective interventions and improved patient outcomes in Zambia's healthcare settings.