Daxid 100 mg Tablet belongs to a class of antidepressant drugs called selective serotonin reuptake inhibitors (SSRIs) used in the treatment of depression, post-traumatic stress disorder (PTSD), social anxiety disorder, panic disorder and obsessive-compulsive disorder (OCD). Depression is a mood disorder associated with symptoms such as sadness, unable to sleep properly or enjoy life as you used to do.