Dec 15, 2025
Chemotherapy and Drug Interactions in Cancer Patients: What You Need to Know
The Hatch-Waxman Act created the modern system for generic drugs in the U.S., balancing innovation and affordability. It let generics enter faster while giving brand companies patent extensions-saving billions but also opening the door to abuse.
Complex generic drugs face major scientific and regulatory hurdles that make approval far harder than for simple generics. Despite high demand and patent expirations, few reach the market due to technical challenges, unclear FDA guidance, and high development costs.