The authors have investigated the effects of several antioxidants for their ability to protect against brain damage in models of transient cerebral ischemia.Their results demonstrate that several antioxidants have dramatic protective effects in models of transient cerebral ischemia.However, merely possessing antioxidant activity alone does not confer neuroprotective activity on a compoundOne or more addnl. properties are required such as the ability to gain access to the cellular compartment where the damage from ROS is taking place.