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An equianalgesic chart is a conversion chart that lists equivalent doses of analgesics (drugs used to relieve pain). Equianalgesic charts are used for calculation of an equivalent dose (a dose which would offer an equal amount of analgesia) between different analgesics. [1]
Butyrfentanyl or butyrylfentanyl is a potent short-acting synthetic opioid analgesic drug.It is an analog of fentanyl with around one quarter of its potency. One of the first mentions of this drug can be found in document written by The College on Problem of Drug Dependence, where it is mentioned as N-butyramide fentanyl analog. [1]
"Studies on 1-(2-phenethyl)-4-(N-propionylanilino)piperidine (fentanyl) and its related compounds. VI. VI. Structure-analgesic activity relationship for fentanyl, methyl-substituted fentanyls and other analogues".
4-Phenylfentanyl is an opioid analgesic that is a derivative of fentanyl.It was developed during the course of research that ultimately resulted in super-potent opioid derivatives such as carfentanil, though it is a substantially less potent analogue. 4-Phenylfentanyl is around eight times the potency of fentanyl in analgesic tests on animals, but more complex 4-heteroaryl derivatives such as ...
Side effects of fentanyl analogs are similar to those of fentanyl itself, which include itching, nausea and potentially serious respiratory depression, which can be life-threatening. Fentanyl analogs have killed hundreds of people throughout Europe and the former Soviet republics since the most recent resurgence in use began in Estonia in the ...
The synthesis of fentanyl and its analogues are illustrated in this skeletal diagram. Part II. The modifications covered in this diagram have to do with carbon skeleton modifications of the original fentanyl molecular structure. These are organized into methyl acetate additions, which are most known for the fentanyl -> carfentanil conversion.
The nurse, a 54-year-old woman from Janesville, replaced fentanyl, a powerful synthetic opioid, with saline, a mixture of salt and water, while working at a local hospital in 2021, according to a ...
Replacing the methyl ester on the long chain with a tert-butyl ester makes the remifentanil analogue 150.000 times more potent than morphine and 210 times more potent than remifentanil itself, which makes it one of the most potent fentanyl analogues known. The tert-butyl group also makes it more resistant to hydrolysis and extends its half life ...