<qa>  What is the potential for risperidone to be effective for?Therefore, risperidone has a potential to be effective for treatment of either Generalized Anxiety Disorder, or Panic Disorder, or Major Depressive Disorder with Panic Attacks DSM-IV, 1994 as a single agent. Moreover, due to its D2 and 5-HT2A2C antagonism and proven antipsychotic efficacy, the drug could be uniquely effective for severe panic attacks with psychotic features or para-psychotic features Galynker et al, 1996. Consistent with this supposition, Marder et al 1997 reported that in patients with schizophrenia, risperidone produced significantly greater improvements than haloperidol in PANSS scores measuring anxiety and depression. 