Fluoxetine HCl 20mg Capsules (Prozac) Image: Tom Varco / Wikipedia A large international trial has confirmed previous findings that a commonly used antidepressant is not effective in supporting the recovery of patients who have had a stroke. The results of the study, led by researchers from The University of Western Australia and The George Institute for Global Health in Sydney, were presented live last night at a webinar facilitated by the joint European and World Stroke Organisation.