| Isobutyl | a colorless pungent liquid sometimes used as a stimulant drug by drug abusers |
|---|---|
| Isobutyl | used also in making gasoline components |
| Isobutyl | a nonsteroidal anti-inflammatory medicine (trade names Advil and Motrin and Nuprin) used to relieve the pain of arthritis and as an analgesic and antipyretic |