US FDA warns of liver injury cases tied to Amgen's rare disease drug https://www.reuters.com/business/healthcare-pharmaceuticals/us-fda-warns-liver-injury-cases-tied-amgens-rare-disease-drug-2026-03-31/?taid=69cc52046599b000011881ce https://www.reuters.com/business/healthcare-pharmaceuticals/us-fda-warns-liver-injury-cases-tied-amgens-rare-disease-drug-2026-03-31/?taid=69cc52046599b000011881ce
