IRCT20180619040161N1 IRCT 2018-09-20 Oroumia University of Medical Sciences Effect of citalopram in schizophrenia Effect of citalopram as an adjuvant with atypical antipsychotics on psychotic symptoms in chronic schizophrenia 2018-09-23 anticipated 30 Complete https://irct.ir/trial/32222 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: For half of sample (15) there will be number one ball and for another half sample there will be number two ball are dropped in the bag and a ball is taken for each patient indicating his group therapy. The citalopram is inserted into the empty capsules And placed in a box (No. 1). Another box (No. 2) contains filled flour capsules as a placebo, Blinding description: In order to blind the researcher and the interviewer and physician from the study, afetr randomization and determination of the intervention group, citalopram and flour (as a placebo) were poured into empty capsules, and each according to their designated group, these capsules in duration of treatment will be taken. Randomization will also be in ball and bag mode. 3 Schizophrenia. Intervention 1: Intervention group: receive an Risperidone 8mg/day plus Citalopram 20mg/day for 8 weeks. Intervention 2: Control group: receive an Risperidone 8mg/day for 8 weeks. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more info