The lady who responded is a very eloquent writer with a seemingly extensive knowledge on this subject.
She ia telling you right but if you are taking the morphine ER and morphine IR. I would drop the darvocet altogether it is full of acetameniphine (tylenol). It will kill your liver. The Diclonifec also may do the same. I would consult my doctor. I take Morhine ER and percocet daily so I know what I'm talking a bout. If you are taking Morhine the Darvocet is too weak to help you very much anyway SO GET RID OF IT!