I think the answer is yes and no. I was in the hospital a year ago due to MRSA, and was in horrific pain, the worst in my life. I was taken off of suboxone and given IM injections of hydromorphone every four hours. What I experienced was not exactly euphoria (like I would when not in pain), but rather sedation, and a feeling of being distanced from the pain. I would nod on and off, but it would be hard to say if I was experiencing opiate bliss (which I dot recall), or just the relief of not being in hideous pain.