the other night i did diazepam (valium) for the first time. ive got some experience with benzos, as ive been prescribed ativan before that. i took 10mg to start with, and it didnt do much for me, so i took another 20, and it floored me (in a good way). It probably lasted around 6 hours or so, so i took another 10 a little later on. i then proceeded to have a beer (only one). i felt great, but the next morning when i woke up, i felt like i had just been on a coke binge. so start low, wait about an hour, and add more as needed, but be prepared not to feel too great the next day if you take a pile of it.