Is Daxid Tablet Right Medication For Anxiety, Tight Chest And Repetitive Thoughts?

Sir, my wife is working in a college as an asst.professor. Now she is suffering with fear, anxiety and feels tightness in the chest. One more symptom is repetitive thoughts. She thinks a lot for every small problem. We have consulted Psychiatrist and he recommended DAXID 50mg tab one at night. shell we go in a right direction? or we need to do consult any other specialist? I am very thanful to you if you suggest any which help her to come out of this situation.