This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Which of the following drugs is preferred for long term treatment of severe anxiety disorder with intermittent panic attacks? 
Select and explain. 
A. Phenothiazine, B. Azapirone, C. b blocker, D. Selective serotonin reuptake inhibitor
D: Selective serotonin reuptake inhibitor
Answer: D: Selective serotonin reuptake inhibitor 
Explanation: (Ref: KDT 6/e p446) SSRIs are the drugs of choice for long-term management of panic disorder whereas benzodiazepines are DOC for acute panic attacks.