I was taking Hydrocodone 10-500 and the Dr switched it to Oxycodone HCL 5mg?I would like to know if this is the same thing? I was building a tolorence to the 10-500 Hydrocodone, so the Dr said the Oxycodone HCL capsule might work better, is this true? I have a Herniated disc in my lower back, and I cant ever seem to get relief, is there a way to take the RX , that will work more efficently ?