If you are seeing myoclonus seizures, the patient likely has kidney impairment. Check BUN and Creatinine before prescribing the morphine. Patients with kidney impairment NEED oxycodone. Morphine is ok for a dose or two but it will build up in the system and cause these seizures. Been doing Hospice for 2 years. So burnt out, ready to quit all together! But I deal with a VERY difficult population. Lord, have mercy on a hospice nurse.