Differences in prescribed medicine availability in Primary Health Care: evidence from the Prover Project

This is a cross-sectional study on the availability of prescribed medicines in Primary Health Care (PHC), with a probabilistic sample of 1,221 users of public pharmacies in a health pole municipality in Minas Gerais, in 2017. Medicine availability indicators were estimated, and a hierarchical logistic regression was performed, according to the behavioral model of health service use. Only 39.3% of patients received all medicines in the prescribed quantities. The most and the least available medicines were, respectively, those for the digestive system/metabolism, and for blood and hematopoietic organs. Full availability of the prescribed treatment was associated with higher schooling (≥ 8 years OR: 1.7; 95% CI: 1.3-2.4); proximity to the pharmacy (≤15 min OR: 1.7; 95% CI: 1.2-2.3); absence of out-of-pocket expenditure on medicines (OR: 2.2; 95% CI: 1.7-2.9), and a smaller number of prescription drugs (≤ 2 OR: 3.2; 95% CI: 2.3-4.4; 3/4 OR: 1.6; 95% CI: 1.2-2.1). These results showed differences in medicine availability within the Brazilian Unified Health System (SUS), and highlighted the need to reorganize the dispensing services network and pharmaceutical procurement planning, as well as to develop public policies to protect the vulnerable population.