According to the US government's National Institutes of Health, caffeine is the most often used psychoactive drug in Western societies. At least 80 percent of adults ingests enough caffeine to affect the brain.
Caffeine is the most widely spread drug among the West. The number two and three drugs are alcohol and nicotine.
Cannibis, Marijuanna
Booze
Tobacco
Alcohol is the oldest drug known to man, and also the most widely-used drug. So, I would imagine it is the most widely-abused drug, as well.
This is more of a opinion type of question, but the general public would be against it as it's the world's most widely used (and abused) recreational drug, next to caffeine.
The most widely abused recreational drug is alcohol - by a substantial margin. The country with the highest per-capita alcohol consumption is probably Uganda. The most dangerous leisure drug is tobacco. Here Greece leads the way.
Alcohol is the most used legal drug. Of Illicit drugs the most widely used drug is cannabis.
Marijuana.
Marijuana = )
oxycontin
Marijuana is definitely the most widely used illegal drug in the US. Marijuana is the most widely used illegal drug.
alcohol
Smoking And Alchahol
cocaine