Stock-outs of antimalarials cause unnecessary deaths among an estimated 219 million people afflicted worldwide. Good pharmaceutical information systems can avoid stock-outs with timely, accurate data and high reporting rates that ensure the continuous availability of critically-needed antimalarials. The US Agency for International Development (USAID)-funded Systems for Increased Access to Pharmaceuticals and Services (SIAPS) Program, with support from the US Government’<span class="attribute-to-highlight medbox">s</span> Presidential Malaria Initiative (PMI), is working with the Government of Guinea to improve the national malaria reporting system. By the end of September 2013, after only a few months of training in all 19 PMI-supported zones, reporting rates had improved significantly, reaching an average completion rate of 85 percent for health facilities during the previous quarter.