ibogaine, nicomorphine, hydromorphone, oxymorphone, Diacetyldihydromorphine, ketobemidone,mescaline,2,5-Dimethoxy-4- also known as stp,befotenin,Dextrorphan,Sufentanil a derivative of fentenyl rofl my dad has a M.D/PhD he finished his Medical scientist training program at MIT in 1998 and Ive seen a lot of diff types of synthetic and natural drugs but i doubt i could try them all. oh ya there were these two other opioids that are derived from fentanyl-Carfentanyl which is 10,000 times more powerful then morphine and is used to tranquilize large animals then theirs Lofentanil which has the same derivative and is a little stronger than Carfentanyl but last way longer... just thought it was interesting-- i love opioids