Objective: Addiction to opium and heroin is not only an important social and individual problem in the world but it also affects the human physiology and multiple systems. The aim of this study is to determine the effects of chronic heroin consumption on basal and vagus electrical-stimulated total gastric acid and pepsin secretion in rats.
Methods: The study was carried out in the Department of Physiology, Kerman University of Medical Sciences, Iran from August 2002 to June 2003.