EA-3580

EA-3580 is a potent anticholinergic deliriant drug with a fairly long duration of action, related to the chemical warfare agent 3-Quinuclidinyl benzilate. It was developed under contract to Edgewood [Arsenal experiments|Edgewood Arsenal] during the 1960s as part of the United States and [weapons of mass destruction#Chemical weapons|US military chemical weapons program], during research to improve upon the properties of earlier agents such as QNB.
EA-3580 is closely related to the similar compound EA-3443, and has similar potency and high central to peripheral effects ratio, but with a duration of action around half as long, although effects of EA-3580 can still persist for 24 hours or more following high doses.