"i mostly used xanax when i had an altercation (verbal) with my girlfriend. she would over-react, and as a result i would get so charged up that i couldn&#039;t switch back to normal. taking xanax eased my nerves so that i could &quot;start new&quot; with the conversation. very powerful though and lasts a long time. i took doses of 0.25mg (i&#039;m 115 lbs). if semi-anxious, doses made me very tired. i blacked-out for parts of a night when taking 1mg. memories of stuff that happened, felt like memories of dreams. also cancels out adhd stimulant medications."