It is sometimes used only to feel happy, like an illegal drug.
People often use more than one of these illegal drugs at the same time.
"Have you or any member of your family ever taken illegal drugs?"
You had illegal drugs in your system and were playing.
When taken to the hospital, the young man is found to have been on illegal drugs.
We do not see the taking of illegal drugs as a human right.
Is there a way to win the war against illegal drugs in America?
It is sometimes used as a part of other illegal drugs.
For example, the law doesn't allow you to let employees take illegal drugs at work.
More than $8 million of illegal drugs have been taken off our streets.