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A pain reliever called U-47700 is part of the opioid family. It was first made by Upjohn about 40 years ago. It was made from AH-7921, which is a similar opioid. U-47700 was important in the development of this class of opioids, but it hasn’t been tested on humans or animals.

Pharmacology: U-47700 is very good at targeting the -opioid receptor. It is thought to be 7 to 8 times more powerful than morphine dose-per-dose. It is thought to be a strong kappa agonist, which means it should not cause a lot of dysphoria or other problems.

People who make the same kinds of chemicals

U-50488
AH-7921
U-69,593
Sweden has banned U-47700 since January 2016, but no other major countries have done the same.

U-47700, like most opioids and their derivatives, is not safe for people to eat. It is only sold to research chemists and people who work in labs.