Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
Tapentadol and
oxycodone hydrochloride, the active ingridients, of the tablets that you are using for your
chronic pain, are both opioids used for moderate to
severe pain for an extended period. Generally they are not taken together.
Opioids have the risk of addiction, and risk of other side effects such as
sleep apnea. The risk of the side effects increases if you use them both.
You can use take these medicines together only if your doctor told you to do so.
You have to use these tablets correctly, with precaution and don't stop taking these medicines, without asking the doctor that prescribed you before.
Hope I have answered your query.
Let me know if I can assist you further.