Oxycodone acts on several issues not related to its analgesic effect. Buy Oxycodone Online and its active metabolites are opioid agonists. These compounds passively diffuse across the blood-brain barrier or may be actively transported across by an unknown mechanism. Opioids generally work in the brain to change how the brain and body feel and respond to pain. It might make one dizzy or drowsy, so it is suggested that you don’t mix it with alcohol.