Can anybody give me advice about lyrica, (pregabalin) tramadol and oxycodone?

What about them? Tramadol is a weak opioid drug which has additional activities that helps pain treatment, with a lower abuse potential than most opioids, but still can cause abuse, as well as seizures in higher doses. Oxycodone is more potent for more severe pain, but has greater risk of abuse and physical dependency. Lyrica (pregabalin) is an anticonvulsant/antidepressant drug that works only in certain pains -nerve damage.