Ethylmethylthiambutene is a potent analgesic compatible with morphine. It possesses addiction liability similar to that of morphine.

Ethylmethylthiambutene:
https://drugs.ncats.io/drug/722BFZ899Q

Ethylmethylthiambutene is a synthetic opioid pain reliver from the thiambutene family, around 1.3x the potency of morphine. This compound belongs to the class of organic compounds known as heteroaromatic compounds.