"works great for short notices. if you find yourself in a anxiety situation or short notice to do some public speaking then xanax is great for those situations.  when i take them i only take half the pill and that dose is fine for me. it kicks in about 20-30 minutes and lasts a good couple of hours at the most. its similar to klonopin but works faster. i recommend it for as needed use only. if its an all day thing then klonopin is better. just my experience with it. others may vary."