Last Updated: Thursday, June 18, 2020
Image of U-47700

What is it?

U-47700, nicknamed “U4,” “pink,” or “pinky,” is a highly potent synthetic opioid that looks like a white or light pink powder. A lot of times, it is often either sold in baggies or pressed into pills to look like legal painkillers. Abuse of this drug is similar to heroin, and prescription and designer opioids.

Street Names

Pinky , Pink or U4

How is it used?

This drug is usually snorted, swallowed or injected.


How does it affect the body?

This drug poses the same risks as heroin and many other designer opioids. The drug’s effects include:

  • Numbness
  • Sedation
  • Cold and clammy skin
  • Coma
  • Respiratory failure leading to death

This drug is 7 - 8 times more potent than morphine, according to the National Institute of Drug Abuse (NIDA). Not to mention, buyers can’t be certain exactly what they are getting when they purchase the drug online.

Read More about Synthetic Opioids

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