I'm sure everyone here knows about the O-desmethyltramadol, been searching around looking for a legal substitute for buprenorphine and happened to stumble upon 2 relatively unheard of(to me anyway) opioids. AH-7921, and a custom synth called Methoxynitazene the 2nd being a mystery to me. Apparently AH-7921 is about 80% the potency of morphine when administered orally and has no legal status in the states similar to O-desmethyltramadol.
Wondering if you guys have heard of or tried either before I make a purchase. Out of the three AH-7921 sounds like the most promising but curious about the methoxynitazene. If anyone wants to check out the site PM me and I'll send you a link to the products.