Oxycodone 5 mg is an immediate release pain medicine that is prescribed for severe pain such as surgery injury and cancer etc . Oxycodone 5 mg is taken every 4 to 6 hours if it is needed for pain . Oxycodone 5 mg tablets can be used with food or without food . It is used for severe pain when other medicines do not work propperly . Its common side effects are dizziness, nausea, constipation, and lightheadedness. It becomes a risk when it is over dose .