Hello. I am a recovering benzodiazepine addict, 29 months clean. I am in protracted withdrawal from benzos, and the most recent symptom is panic attacks. I do not want to take another benzo, ever. I have been using 1 1/2 pills 22.5 mg mirtazapine for sleep. I took one this morning and it seems to have helped with panic. My question is, is there an optimal dose for panic/anxiety, and is it better to take it all before bed or divide the dose?