Thanks for the input! However, what my friend in my dream was taking was just .5 XR (Pentagon shaped.) He used to be prescribed just .5 alprazolam
(not extended release) and would take 4 to get high. Then he got prescribed the XR .5 instead and isn't sure if the high would be the same, since it is extended release. Doesn't want to waste his pills by taking 4 and nothing happening, I guess!
The school-bus analogy was just because in my dream, he has taken them before and they would get him high. He thought they were XR, so figured that the .5XR would do the same thing if he took 4, to equal 2mg.