We demonstrated that, in contrast to classical opioid receptors, ACKR3 will not cause classical G protein signaling and is not modulated with the classical prescription or analgesic opioids, which include morphine, fentanyl, or buprenorphine, or by nonselective opioid antagonists which include naloxone. In its place, we proven that LIH383, https://josephl589rrl6.frewwebs.com/profile