I like it, cool idea! This may also help people realise that when they use drugs the effects only get longer not stronger if you take more than one.
That's right, I actually hadn't thought of that.
hm.. That's useful. Anyways, instead of those image in the bottom, we can easily have a countdown, a simple one.
Yeah, something that would take up less space would work as well. I just figured I'd back up my suggestion with something more visual that people could understand, as well as provide an example of what could be created from this concept.