# Product Liability

> The legal responsibility of manufacturers and sellers for injuries caused by defective products they place into the marketplace.

**Category:** Legal Theory
**Canonical URL:** https://drugsmonitor.com/glossary/product-liability
**Last updated:** 2026-06-11

Product liability claims in pharmaceutical cases typically fall into three categories: design defect (the drug formulation was unreasonably dangerous), manufacturing defect (an error in production created the risk), and failure to warn (inadequate safety information was provided).

Most pharmaceutical product liability cases focus on failure to warn theories, alleging that manufacturers knew or should have known about risks but did not adequately communicate them to prescribers or patients.

State product liability laws vary significantly. Some states require proof of negligence, while others apply strict liability, where the manufacturer may be held liable without proof of fault if the product was defective.

---

*Glossary entry from DrugsMonitor.com.*