Ishy...
What doc is prescribing this for you? Are you seeing a neurologist?
Also - your profile says you are "non-prednisone". Why is that? What does that mean?
I did a lot of research about headaches when I was having them. I would get pain in my temple that felt like someone was pounding a railroad spike in my temple. It would last for a few days... no relief. When it would finally subside - it would only be for like a day. Anyway, in doing my research, I found that a lupus headache mimics a migraine - but the only thing that will treat it is high doses of prednisone. They put me on 30 mg for about three days, then 25, then 20. Which did get rid of it.
To me, oxy is very scary. I have a friend who is a nurse. She just had a liver transplant. They put her on it for obvious reasons - but she refuses to stay on it
I have to agree with Lynnwood...I would research some alternatives.
~Kim