Medicines' private costs among elderly and the impairment of family income in a medium-sized municipality in the state of São Paulo

The acquisition of medicines accounts for a significant proportion of private health expenditures. The objective of this study was to analyse the private spending with the purchase of medicines and the commitment of the family income, by the elderly. Population survey conducted in Praia Grande, São Paulo, Brazil. The monthly expenditure and the per capita family income commitment with the purchase of medicines were calculated from the information obtained in the interviews. The variables were described in absolute and relative frequencies and the hypothesis test was Pearson's χ2, Student's t and Anova, with a significance level of 5%. The prevalence of drug use was 61.2%. The average monthly expenditure per capita was R$ 34.59, with significantly higher income impairment for individuals with higher levels of education, without chronic diseases and health plan beneficiaries. The prevalence of drug use was low. The cost generated by the purchase of medicines is one of the ways in which inequality can manifest in society. The expansion of free drug provision would be necessary to expand access and avoid spending, especially those who have private health plans but cannot afford drug treatment.