Using Korean college students as a sample, this study explores the role of country of origin and country brand attitude on purchase intention of nonprescription drugs. The results showed that country of design and country of assembly have signifi cant effects on quality perception and purchase intention of nonprescription drugs between the United States and China, and country brand attitude has signifi cant effects on the purchase intention of nonprescription drugs between United States and Germany, and between China and Malaysia, according to the degree to which consumers have a favourable attitude toward the specifi c country brand.