Xenobiotics are chemical substances not naturally produced, expected, or found within an organism or its environment. These xenobiotic compounds can originate from various sources, including pharmaceuticals, pesticides, industrial chemicals, and pollutants. Due to their foreign nature, xenobiotics often pose challenges to biological systems, as they can interfere with metabolic processes, potentially leading to toxic effects. Organisms have evolved complex detoxification mechanisms for xenobiotics involving metabolic pathways that modify these compounds. The study of xenobiotics is crucial in pharmacology, toxicology, and environmental science, as it helps understand the impacts of these substances on health and ecosystems.