Conversation: The conversation between human and AI assistant.
[|Human|] My husband is taking hyddromorphone Hal 2mg tablets for cancer pain. He is now starting today fentanyl 12mcg/hr patch myl. He is in incredible pain, the patch has only been on eight hours. Can he take the hyddromorphone to help with the pain, until the patch starts to work.
[|AI|]  Thanks for your question on Chat Doctor. I can understand your situation and problem. Terminal stage cancer pain is very excruciating in nature. Routine painkillers will not work. We need to give centrally acting painkillers. And fentanyl patch is excellent in cancer pain. Its action starts in 6-7 hours and last for 72 hours. So you can definitely take other centrally acting painkillers like HY Chat Doctor. So no harm in giving HY