"full hip replacement. i take oxycodone 20 mg every 6 hours,when i first started taking, it gave me headaches but my pain control was great, in about a week, the headaches were gone. i would highly recommend this pain med, i have been taking them for a month and my mind is clear, don&#039;t feel tired from a scale of 1 to 10 my pain is about a 2 or 3 with the pain meds. i would like to warn you if you wait too long out to take your meds you will regret it. i take 20 mg every six hours, one night i slept about 10 hours and woke up with intense pain."