A notice of intent to schedule the synthetic opioid cyclopropyl fentanyl was published on Nov. 21 (82 Fed. Reg. 55333). The actual proposal to schedule the substance will be issued after Dec. 21. Cyclopropyl fentanyl has no approved medical use in the United States and has not been approved by the U.S. Food and Drug Administration for human consumption. The action is based on fin... Read More