Tuberculosis continues to be a global pandemic, second only to AIDS as the greatest single-agent killer in the world. In 2013 alone, the tuberculosis bacterium Mycobacterium tuberculosis caused 1.5 million deaths and almost nine million new infections. Resistance to tuberculosis drugs is widespread, creating an urgent need for new medicines. EPFL scientists have now identified lansoprazole, a widely used, over-the-counter antacid, as an excellent candidate against tuberculosis. The study is published in Nature Communications.