The labeling also cites concern over `` thoughts of suicide '' and `` anxiety , agitation , panic attacks , difficulty sleeping , irritability , hostility , aggressiveness , impulsivity , restlessness , or extreme hyperactivity . '' Girlfriend : Kazmierczak stopped taking Prozac three weeks before NIU shooting . Most experts say there is little data to provide link between drugs , violence . FDA : The agency said it has received reports of suicidal thoughts and behavior in patients who took the drug for depression or anxiety but did not have a history of mental health problems. Other drug interactions make it difficult to conclude whether a link exists .
Girlfriend : Kazmierczak stopped taking Prozac three weeks before NIU shooting . Most experts say there is little data to provide link between drugs , violence . FDA : The agency said it has received reports of suicidal thoughts and behavior in patients who took the drug for depression or anxiety but did not have a history of mental health problems. Other drug interactions make it difficult to conclude whether a link exists .