This sort of trite criticism of the hoi polloi is easy and lazy.
People are better informed than ever, read more than ever, and are more satisfied with their lives than ever. You dismiss this monumental progress by calling it a drug.
...Soma is a hallucinogen that takes users on enjoyable, hangover-free "holidays". It was developed by the World State to provide these inner-directed personal experiences within a socially managed context of State-run 'religious' organizations; social clubs.
Soma was the recreational drug in Aldous Huxley's "Brave New World", a sci-fi dystopia book that presented a different view of the future than Orwell's 1984.
In it, the government uses entertainment and technology to keep people within their assigned classes as opposed to military force and surveillance.