Mg Tablet from Plenum Biotech that are used for treating depression, post-traumatic stress disorder (PTSD). Sertraline Hydrochloride tablet 50 mg is useful in treating depression, post-traumatic stress disorder (PTSD), social anxiety disorder, panic disorder and obsessive-compulsive disorder (OCD). Depression is a mood disorder that may involve persistent thoughts or ideas (obsessions), which can lead to repetitive behaviors (compulsions). Panic disorder is linked to anxiety with sudden feelings of fear when there is no danger in reality.