Aventis Pharmaceuticals Inc. (United States)

Aventis Pharmaceuticals, now part of Sanofi, was a major pharmaceutical company known for diabetes treatments, vaccines, cardiovascular medicines, and oncology products. The company’s legacy includes development of insulin products, including Lantus (insulin glargine), allergy medications like Allegra (fexofenadine), and cancer treatments. Sanofi continues Aventis’s tradition of pharmaceutical innovation and global healthcare leadership.