<p><b>BACKGROUND:</b> Tablet splitting appears common in older adults, but its safety, and the factors associated with this practice, remain unclear. <br> <b>OBJECTIVE:</b> To identify which psychotropic drugs are most often split, which doses are intended with this practice, and whether these doses are provided by the Brazilian Unified Health System (SUS) or commercially available.<br> <b>METHODS:</b> Cross-se...