Why does adderall work better than vyvanse (lisdexamfetamine) for some people. is propanolol appropiate for anxiety? how does nuvigil work? can trazadone be used for sle

Many answers: 1. No one knows why adderal works better than Vyvanse (lisdexamfetamine) for some patients. 2. Yes, propanol is appropriate for stage fright or performance anxiety, test anxiety etc. Any anxiety that is caused by a panic response. 3. The mechanism of action of Nuvigil is not known, it promotes wakefulness. 4. Yes, trazodone can be used for sleep in specific circumstances and after consultation with a physician.