Drivers of federal spending in pharmaceuticals of the Specialized Component: measurement and analysis.

The contribution of drivers to MS expenditure in the CEAF's 1A group fluctuated between 2010 and 2019. However, the expenditure decrease in recent years was induced by the three main drivers: price, quantity and residual. The decrease in the quantity purchased may have reduced the availability of some pharmaceuticals in the Brazilian Unified Health System (SUS).