Just want to echo someone else's sub-thread:
Adderall is not at all similar to Huxley's description of Soma. Soma was about feeling good and not having to think of the evil things that make the BNW society possible, not efficiency.
replies(4):
I can only presume, based on timing of the talk being 1960, that his thoughts here link to mescaline and the practical utopia he talks of in Island, whose inhabitants make use of a local psychedelic. So whatever he must have said here had more to do with his later perspectives than his feelings around the island.