Lysine
herbal supplementation
"I was diagnosed with GAD and chose not to undergo drug therapy, so I tried a dozen supplements before settling on lysine. I find that it is absolutely great for relieving chronic stress and anxiety. Dose is about 1000 mg before bed (more restful sleep) and 500-1000 during the day as needed. Effect last 5-6 hours. No slowing/dulling effect like with passionflower or kava, or rebound/unstable anxiety like St John's Wort or skullcap. Mind is sharp and free of inner tension. No side effects and no interaction with drugs (I take seroquel for sleep). Also very cheap!"