i love vikoden i take them 2 at a time and i take them probley like once or twice a month as to not get addicted and i take them during school...(freshman) The werid thing is it's like being high to me i can sit there and ace a test because i am so clear-headed and i have heard a friend of mine say he takes them during everytest and thats why he gets better grades than me....idk the whole story but just one thing if u take them try to stand up and walk a little every few min. because the first time i took them i was in studyhall and they kicked in and i was sitting there feeling great doing homework then the bell rang and i stood up and nearly fell headfirst into my desk because it just felt really different.....same thing happens when u drink a lot while sitting then stand up.......just a tip.....