Protonitazene, also referred to as Propoxynitazene, is a new opioid drug, an analgesic while in the benzimidazole class. Protonitazene is surely an isomer of isotonitazene and it has very similar consequences on the human body found in chemical studies in rodents. O-DMST is almost similar to tramadol which is so https://authenticchemicals.com/