FDA Enforcement & Drug Safety

FDA enforcement actions—warning letters, label changes, boxed warnings, post-market study orders, and product recalls—are leading indicators of product liability litigation. When the FDA requires a manufacturer to update labeling for newly recognized adverse events, plaintiff attorneys frequently file suit alleging the manufacturer knew or should have known about the risk earlier. The FDA Adverse Event Reporting System (FAERS), Drug Safety Communications, and the MedWatch program generate publicly observable signals that precede mass tort formation by 12 to 36 months. TortSignal monitors FDA enforcement output continuously across drug classes most likely to produce mass tort liability and folds those signals into the science-strength component of each tort's composite score. Recent examples include GLP-1 agonist label updates, Tylenol acetaminophen warnings, and Depo-Provera meningioma additions.