Oxycodone HCI, a combination of oxycodone and aspirin, is an opioid pain medication used to treat moderate to severe pain for people require continuous around the clock treatment. The treatment works by altering the pain sensors in the brain and targeting the central nervous system. This drug may be habit forming. Oxycodone Hcl is a medication that is used in the treatment of pain. It is an opioid pain medication that can be used in the treatment of the both mild and severe pains. It is supplied in the form of an oral solution and should be administered through the mouth. Oxycodone Hcl is a narcotic drug that is used in the treatment of the severe and mild pain. The drug can be used in relieving severe stomach pains, headache, and any other form of pain. It works by reducing the effect of the chemical that is responsible for causing pain. By this, it lowers the severity of the condition. Oxycodone Hcl can also be used for the patients scheduled for a surgical operation as a pain reliever.