You obviously don't understand this medication. Why don't you read the Ashton Manual on this subject. Read about withdrawal symptoms and how long they can persist in some people, especially those who stop cold turkey. This medication can stay in ones tissue for long periods of time, months and even longer. Research is still trying to figure out for how long. I'm not sure where you've heard 12 hour half life but thats BS. Why do people have withdrawal effects for weeks/months, even longer from being on this med. if it's nowhere to be found? Like I said - most people on this med are addicted (but nobody wants to use that term since it correlates to street drugs) so they say dependent which they are unknowingly. Why do you think people need to have their doses upped to get the same effect? Luckily some people deal with this potent benzo just fine while others do not. But many are stuck and experienmce issues long past 12 hours after stopping the med. The taper recommended alone should speak volumes.