The veterinary drug thiafentanil was placed in Schedule II effective Aug. 26, under the Improving Regulatory Transparency for New Medical Therapies Act of 2015 (81 Fed. Reg. 58834; Aug. 26, 2016). It will be marketed as Thianil (thiafentanil oxalate). An analogue of fentanyl, the potent opioid recently was listed by the U.S. Food and Drug Administration as a legally marketed new a... Read More