The Symposium “Therapeutic Drug Monitoring in Developing Countries” will be held on September 23rd afternoon, at the 17th International Congress of Therapeutic Drug Monitoring and Clinical Toxicology, IATDMCT 2019, in Foz do Iguaçu. Dr. Paula Schaiquevich, from Argentina, will present the lecture “How can we bridge the gap between developed and developing countries in TDM”. Afterwards, Dr. Andres Felipe Zuluaga, from Colombia, will bring the theme “Improving the old and in the new: the expanding role of TDM in the management of Mycobacterium tuberculosis”. The complete IATDMCT 2019 program is available online: www.iatdmct2019.org. Best values registration until June 30.