In 2004, Aventis merged with and into Sanofi. The new Sanofi-Aventis Group became the world's 3rd largest pharmaceutical company. Aventis Pasteur, the vaccine division of Sanofi-Aventis Group, changed its name to Sanofi Pasteur. In 2014, Sanofi Pasteur stopped producing its effective Fav-Afrique antivenom because competition from cheaper though less powerful competitors made it unprofitable. Doctors Without Borders said that it would take two years to develop a similar antivenom, and that existing stocks would run out in June 2016.