RESUMO
Background: Patent medicine vendors are major providers antimalaria treatment in Nigeria. The management of malaria by this informal sector of healthcare delivery is however dominated by negative practices. This study determines the influence of training on antimalaria treatment practices of patent medicine vendors. Methods: Fifty-five patent medicine vendors selected through a multistage sampling technique in Birnin-Kebbi were recruited into the study. Their baseline treatment practices were determined and the negative ones identified. Intervention training was instituted and its impact assessed using a interviewer-administered questionnaire. Simulated visit mystery client survey which involved direct observation of patent medicine vendors practice was conducted after the intervention and the results compared with self reported post intervention practices. Results: The negative practices identified included inappropriate dosage regimen; frequent unnecessary use of injectables and alteration of physicians' prescriptions. Following the intervention training of the patent medicine vendors; the overall appropriate treatment practice score rose from baseline value of 3.6to 45.5(p0.05) and significantly lower than the post training values (p0.05) and was significantly lower than the post intervention values (p