I'm a 73 year male, 100% mentally and physically, and take no other medication with the exception of Coumadin (Warfarin) since August 2007, as the result of an embolism (and death) of a branch artery supplying the optic nerve to my left eye. (lucky to still have 99.5% of my eyesight). I have just recently began to experience minor memory-loss, confusion, disorientation and loss of balance (usually not simultaneously). I plan to consult with both my cardiologist and neurologist re: these "events" this coming week.