Uh, might I ask why thorazine is involved? If you are trying to chill someone out, it's probably safer, easier, and more pleasant just to use some benzos; and if someone is psychotic, adderall is possibly the WORST thing they could take. That being said, thorazine is a depressant, so the usual warnings apply: "Do not use in comatose states, presence of large amounts of C.N.S. depressants (alcohol, barbiturates, narcotics, etc.)." "The use of alcohol with this drug should be avoided due to possible additive effects and hypotension." (www.rxlist.com)
If it's the lesser of two evils, I would guess that it would be OK, as adderall might counterbalance the downerness, but I would avoid it unless really necessary.
-Zorn