@lioness I’ve no doubt you know what works for you, but they are not “all the same thing.” Tramadol, Darvon, morphine, Vicodin, and many others are all very different. Some drugs are sold under different names but are the same (ultra Vs tramadol and Vicodin vs Norco are same basic drugs made by different manufacturers). Despite being the “same” they do come different strengths and some come in extended release.