RESUMEN
OBJECTIVE: The plant Argemone mexicana is traditionally used as diuretic, anti-inflammatory, antibacterial, antifungal agent, and has wound-healing property. This study was carried out to evaluate the effect of A. mexicana aerial part of the plant (methanolic and aqueous extract p.o.) on duodenal ulceration. MATERIALS AND METHODS: The study was carried out on the duodenal ulceration model by using cysteamine hydrochloride. Ranitidine (20 mg/kg) was used as standard drug. RESULTS: Both the extracts of the plant A. mexicana produced a significant activity in cysteamine-induced duodenal ulceration. The aqueous extract at the dose-dependent manner showed the potent activity than methanolic extract. CONCLUSION: The plant A. mexicana Linn. Increased healing of gastric ulceration and prevented the development of experimentally induced duodenal ulceration in rats.