Phenaridine (2,5-dimethylfentanyl) is an
opioid
Opioids are a class of Drug, drugs that derive from, or mimic, natural substances found in the Papaver somniferum, opium poppy plant. Opioids work on opioid receptors in the brain and other organs to produce a variety of morphine-like effects, ...
analgesic
An analgesic drug, also called simply an analgesic, antalgic, pain reliever, or painkiller, is any member of the group of drugs used for pain management. Analgesics are conceptually distinct from anesthetics, which temporarily reduce, and in s ...
that is an
analogue of
fentanyl
Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic (pain medication). It is 30 to 50 times more Potency (pharmacology), potent than heroin and 50 to 100 times more potent than morphine. Its primary Medici ...
. It was developed in 1972,
and is used for surgical anasthesia.
Phenaridine has similar effects to fentanyl. It is slightly less potent than fentanyl in rats. Side effects of
fentanyl
Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic (pain medication). It is 30 to 50 times more Potency (pharmacology), potent than heroin and 50 to 100 times more potent than morphine. Its primary Medici ...
analogs are similar to those of fentanyl itself, which include
itching
An itch (also known as pruritus) is a sensation that causes a strong desire or reflex to scratch. Itches have resisted many attempts to be classified as any one type of sensory experience. Itches have many similarities to pain, and while both ...
,
nausea
Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. It can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the throat.
Over 30 d ...
and potentially serious
respiratory depression
Hypoventilation (also known as respiratory depression) occurs when ventilation is inadequate (''hypo'' meaning "below") to perform needed respiratory gas exchange. By definition it causes an increased concentration of carbon dioxide (hypercapni ...
, which can be life-threatening. Irresponsible use of fentanyl analogues administrated in several times larger doses than recommended, have ended up in a death of hundreds of people throughout Europe and the former Soviet republics since the most recent resurgence in use began in Estonia in the early 2000s, and novel derivatives continue to appear.
See also
*
3-Methylfentanyl
3-Methylfentanyl (3-MF, mefentanyl) is an opioid analgesic that is an analog of fentanyl. 3-Methylfentanyl is one of the most potent opioids, estimated to be between 400 and 6000 times stronger than morphine, depending on which isomer is used (w ...
*
4-Fluorofentanyl
Parafluorofentanyl (4-fluorofentanyl, pFF) is an opioid analgesic analogue of fentanyl developed by Janssen Pharmaceuticals in the 1960s.
4-Fluorofentanyl was sold briefly on the US black market in the early 1980s, before the introduction of the ...
*
α-Methylfentanyl
α-Methylfentanyl (or ''alpha''-Methylfentanyl, α-MF) an opioid analgesic that is an analog of fentanyl. It is sometimes sold as "China White".
History
α-Methylfentanyl was discovered by a team at Janssen Pharmaceutica in the 1960s. In 1976 ...
*
Acetylfentanyl
Acetylfentanyl (acetyl fentanyl) is an opioid analgesic drug that is an analog of fentanyl. Studies have estimated acetylfentanyl to be 15 times more potent than morphine, which would mean that despite being somewhat weaker than fentanyl, it is ...
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Fentanyl tropane
Fentanyl tropane (tropafentanyl) is an opioid derivative which is an analogue of fentanyl, where the central piperidine ring has been bridged with a two carbon chain to form a tropane ring. It is made from tropinone in a similar manner to how fe ...
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Furanylfentanyl
Furanylfentanyl (Fu-F) is an opioid analgesic that is an analog of fentanyl and has been sold as a designer drug. It has an ED50 value of 0.02 mg/kg in mice. Research done in the 1980's showed that in humans furanylfentanyl is 50-100 times ...
*
List of fentanyl analogues
The following is a list of fentanyl Structural analog, analogues (sometimes referred to as fentalogs), and includes both compounds developed by pharmaceutical companies for legitimate medical use, and those which have been sold as designer drugs. ...
References
{{Opioidergics
Synthetic opioids
Piperidines
Propionamides
Anilides
Mu-opioid receptor agonists