I would rather turn the two things around. There is pretty much no way to become dependant in a day or even a week, but you can certainly become addicted with a one-time-use. I know that there is a substance to which I was addicted from the first use on, but it took about 2 months of daily use to become truly physically dependant (not only slight and very bearable rebound symptoms but a true, full withdrawal, in this case an opioide).
I don't think it is technically possible to become addicted to a drug after one use. I am not 100 percent sure of the technical definition but my undersyanding of it is that someone who has an actual addiction (strictly psychology terms) is someone who has physical dependance to a substance. Someone who uses a substance and needs it due to emotional problems and etc rather then avoiding a physical withdrawal would be considered a substance abuser. Of course people throw around the word addiction interchangably which is not such a bad thing because a mental addiction is can easily be as serious and difficult to deal with as a physical one. However in the end if you were talking in terms of the professional world of psychology I would say you could not be addicted from use because by their definition addiction requires physical dependence. You can definitley develop a substance abuse problem after one use though. Been there and done that with opiates and benzos!
