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Purpose Ocfentanil and carfentanil are two potent synthetic opioids that are analogues of fentanyl and are actively involved in the recent fentanyl crisis. The aim of this review is to provide all the available information on these two fentanyl analogues. Methods All reviewed information was gathered through a detailed search of PubMed and the World Wide Web using relevant keywords. Results Like...
The fentanyls are a family of drugs that have caused hundreds of deaths in Europe and the United States. They first appeared in the United States in the late 1970s; they were sold as heroin to unsuspecting users. Furanylfentanyl is a potent synthetic drug, an analogue of fentanyl that belongs to the above family. It has no proven medical use, but it is abused throughout the world for its opioid-like...
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