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Trefentanil (A-3665) is a fentanyl analogue opioid developed in 1992. It is more potent and shorter acting than alfentanil. Trefentanil is not used in clinics due to the severity of its respiratory depression, though it is still used in research.
Trefentanil (A-3665) is a fentanyl analogue opioid developed in 1992. It is more potent and shorter acting than alfentanil. Trefentanil is not used in clinics due to the severity of its respiratory depression, though it is still used in research.
