You are the pharmacist in a palliative care centre. Patient BM is in the last stages of breast cancer. She is in terrible pain and has asked the doctor to increase her dose of pain-killer medicine. BM is already taking the maximum safe dose recommended for this medication, and the doctor is hesitant to increase the dose any further since it would likely hasten her death. BM has expressed to both you and the doctor that she understands this risk, but she would like to be comfortable for the short remainder of her life. BM is clear and rational while expressing this. The doctor has asked you for your advice.