Oxycodone
When a person becomes addicted to oxycodone through a doctor's prescription, they may do several things in order to get more of it.
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When a person becomes seriously addicted to oxycodone, they can attempt to forge a doctor's prescription in order to give it to a pharmacist and get more of the oxycodone. 
People who are addicted to oxycodone and cannot obtain it through a doctor, they may resort to buying it illegally on the street.
When a person becomes seriously addicted to oxycodone and is desperate enough for it, they can rob pharmacies in search of the opioid.
When someone is addicted to heroin and does not want to let family members of friends know about said addiction, they will resort to going to extreme lengths to hide oxycodone.
When someone becomes addicted to oxycodone, it is very likely that they lose a significant amount of weight.
When a person becomes addicted to oxycodone, they can have nausea and start to vomit more often.
There are several side effects of oxycodone
Chills are one of the side effects of oxycodone.
Confusion is another side effect.
Dizziness is a side effect.
A fever is a side effect.
Tightness in the chest is another side effect.
Twitching is another side effect of oxycodone.