20 mg of Oxycodone is used to manage severe pain . It works immediately to manage pain after taking the Oxycodone 20 mg pills . Oxycodone comes in liquid format and tablet formal . Its overdose is highly risky so the doctor adjusts your dose when treatment . This pill is used in case of cancer injury and surgery because at that time human suffering is in a strong pain . Many side effects are seen after taking this 20 mg Oxycodone pill ,like headache , weakness , dizziness etc .