Sanofi has agreed to settle approximately 4,000 lawsuits alleging that its heartburn medication, Zantac, contained a carcinogen. The settlement includes payments of approximately $25,000 per claim and applies to cases filed outside of Delaware. A Delaware judge will determine the admissibility of scientific evidence for additional lawsuits involving Zantac. The company claims that the settlement is not an admission of liability but a measure to reduce litigation costs.