Published January 25, 2026 · Parkinson's Lawsuit Help
Paraquat and Roundup are both contact-applied herbicides, but they cause different injuries and are subject to different litigation. Conflating them leads to confusion among potential claimants.
Different chemistry
Paraquat is a quaternary ammonium herbicide that works through redox cycling — generating reactive oxygen species. Roundup contains glyphosate, which inhibits the shikimate pathway in plants. The mechanisms are unrelated.
Different target organ
Paraquat's most prominent chronic health concern is the central nervous system — specifically Parkinson's disease. Roundup litigation centers on non-Hodgkin lymphoma (NHL) — a cancer of the immune system. Each litigation targets a different injury.
Different regulatory posture
Paraquat is EPA Restricted Use; only certified applicators can buy or apply it. Glyphosate is unrestricted and is the most widely used herbicide in the world. EPA classifications of carcinogenicity for glyphosate have shifted over time and have been the subject of intense regulatory and litigation dispute.
Different litigation status
Roundup litigation has produced large jury verdicts, multi-billion-dollar settlements, and ongoing preemption fights. Paraquat litigation has trailed Roundup in time but has accelerated rapidly in 2024–2026 with the Syngenta settlement framework, the Philadelphia bellwether resolution, and Syngenta's March 2026 production discontinuation.
Eligibility is not transferable
A person with Parkinson's disease from paraquat exposure has a paraquat claim. A person with NHL from Roundup exposure has a Roundup claim. The two are distinct — having one does not affect the other.
Get a free case review
If you or a family member were exposed to paraquat and have been diagnosed with Parkinson's disease, request a free case review. It takes 15 to 30 minutes by phone, costs nothing, and locks in your place while settlement options remain open. Check eligibility or call (717) 724-7503.