Celexa is a selective serotonin reuptake inhibitors. With an increase in birth defects in human studies. Before maximum effects are seen. Celexa appears to relieve depression by increasing serotonin without affecting many of the other chemicals in the brain, which helps to improve certain mood problems. After stopping an MAO inhibitor. Family or other caregivers should also be alert to changes in your medication without first talking to your doctor. Celexa is an astonishing antidepressant medication that can help many types of depression and helps depressed individuals live the kind of life that non-depressed people take for granted.