I am a 56yr old female with arthritis on both sides of my cervical spine, pear shaped disc which is pinching a nerve. I have burning pain in my upper back, by my shoulder blade and my left arm is numb and in a lot of pain. I have had xrays & mri. I am having an emg on 1-9-08. They want to do surgery where I'll have bone grafting, a plate and a pin put in my neck to make things all better. (I pray) I have had injections in my spine as an outpatient and the first one worked great and I have no more pain on my right side of my back but the other two for the left side didin't work. Therapy just made it worse. In the mean time I was taking (2) 7.5/500 oxycodone every 6 hrs & the dr said that was too much so today I started on oxycotin 40mg every 12hrs and oxycodone 5/500 (1) every 6hrs. I took the oxycotin @ 8:30am and oxycodone @ 9:30am and I have been in pain all day. My question is can I take the 12 hr pill & (1) 6hr pill at the same time or do I need to wait an hour or so before taking the 6 hr pill and hopefully in a few days the pain will be under control? Thanks