All robins pain meds were in liquid form and went down his feeding tube.i know the drugs available in america are slightly different but Rob had 300 mcg fentanyl plus liquid morphine for breakthrough pain,they added ibuprofen for inflammation,paracetamol ,amytriptaline for nerve pain,my point being that every different type of pain requires a different type of medication so one broad spectrum analgesic may not do the job.You should not have to suffer any pain and at the very least you could ask for a pump syringe to give you continuos relief,