"http://www.erowid.org/pharms/oxycodone/oxycodone.shtml

Oxycodone is an opiate, narcotic analgesic, used primarily in the treatment of pain.

Oxycodone is Addicting
Oxycodone is an opiate and, as with most opiates, is addicting. Some people find opiates very appealing and with even moderate use, can find themselves using more than they want to. With regular use, the body becomes physically dependent upon the substance, causing withdrawal symptoms if use is ceased.

Oxycodone Causes Tolerance
Those who use Oxycodone for many days in a row report that they begin to require a higher dose for the same effects. Beware of dosages recommended by an individual who uses Oxycodone regularly as their dose could be dangerous for a non-user due to tolerance"