Rhône-Poulenc Rorer, Inc. References Rhône-Poulenc Rorer, Inc. French corporation Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Rhône-Poulenc SA…one of its main subsidiaries, Rhône-Poulenc Rorer, Inc., acquired Fisons, a major British drug manufacturer. Read More…one of its main subsidiaries, Rhône-Poulenc Rorer, Inc., acquired Fisons, a major British drug manufacturer. Read MoreAventis> Rhône-Poulenc. With headquarters in Strasbourg, France, Aventis was the product of the first transnational merger to combine large rival companies from France and Germany. It became part of the French pharmaceutical conglomerate Sanofi-Aventis in 2004. Read More> Rhône-Poulenc. With headquarters in Strasbourg, France, Aventis was the product of the first transnational merger to combine large rival companies from France and Germany. It became part of the French pharmaceutical conglomerate Sanofi-Aventis in 2004. Read More