Actually, your suppositories are far more powerful than the hydromorphone. It doesn't matter whether they come in through the top, bottom, IM, Transdermal, port or IV. But you did not say how long you've been using the suppositories. If it has been many months or years, you could have become tolerant to it (them). Many of us have gradually gone from one higher-level opioid to another over a period of years. In other words, we have become tolerant to the most powerful pain drugs. When that happens, we must rotate to a chemically different opioid. After a few months, we can switch back to the original medication(s) with significantly greater efficacy. The problem is when the meds we are tolerant of are the most powerful; we cannot rotate to anything of equal or greater power.
I'm sorry that your doctor won't give you something else. You're right that it's a terrible way to treat anyone, human or animal. I can only offer a suggestion. Ask your physician about Fentanyl Transdermal. Fentanyl is the most powerful pain medication available. It is available in every format and at many diverse dosage levels. The Transdermal patch works for 48 to 72 hours. This one very powerful pain medication added 9 awesome years to my career.
Consider off-label drugs, includes an anti-depressant (to inhibit the reuptake of Seratonin), an anti-convulsant (if you have neuropathic pain) and Marinol (Elan Pharmaceuticals). The active ingredient in Marinol is THC. Yes, that's the same THC that"026 well you know what it is. After almost 40 years of continuous severe pain (from central canal stenosis, herniated discs, multi-level fusion, massive fibrosis (scar tissue) and ubiquitous osteoarthritis, I've learned about virtually every pain treatment. THC will either help you immensely or it will make you anxious. You have nothing to lose. If it doesn't help, just DC it.
Mind-body techniques can help a little. I can reduce my pain by about 20% at any time with biofeedback. Some people rave about TENS, hypnosis, systematic relaxation, meditation or Yoga.
Try everything that comprehensive pain management clinics offer. Chances are, some combination of options will help.
Distraction is powerful. Use what works. In my case it is writing, sports and films. Try whatever is of interest. The easier it is to distract yourself, the more pain-free minutes you'll have.
People like us require an open-minded physician, willing to prescribe a very wide variety of options for our chronic pain. Eventually, you and your physician will determine which combinations of medications and non-invasive treatments work well. If all else fails, there is the spinal cord stimulator and the intrathecal infusion pump.