So I have been on Oxycodone for about 10 months now, 5mg HCL. And with my anxiety a question has been bothering about it that I never ask my doctor due to fear of what he might pull the medication. I feel my current daily dose 1 5mg tablet every 4 hours isn't working as well as it did when I first started taking the medication. But my main question is how many mg's of Oxycodone does it take to kill a person? Like if I ended up taking 10-15mg would I be fine? I know when I had some medical problems a few years ago I was on 10-15mg every 4 hours and I was perfectly fine. But ever since a bad incident with Tramadol and having a really bad muscle knot in my shoulder, between spine and left shoulder blade which mimics heart attack symptoms any time the weather changes a little, it just makes me a paranoid.