Phenaridine

Phenaridine

Clinical data
ATC code	none
Identifiers
IUPAC name N-[2,5-dimethyl-1-(2-phenylethyl)piperidin-4-yl]-N-phenylpropanamide
CAS Number	42045-97-6
PubChem (CID)	162056
ChemSpider	142327 Y
Chemical and physical data
Formula	C24H32N2O
Molar mass	364.52 g/mol
3D model (Jmol)	Interactive image
SMILES O=C(N(c1ccccc1)C3CC(N(CCc2ccccc2)CC3C)C)CC
InChI InChI=1S/C24H32N2O/c1-4-24(27)26(22-13-9-6-10-14-22)23-17-20(3)25(18-19(23)2)16-15-21-11-7-5-8-12-21/h5-14,19-20,23H,4,15-18H2,1-3H3 Y Key:ODPKHHGQKIYCTJ-UHFFFAOYSA-N Y

Phenaridine (2,5-Dimethylfentanyl) is an opioid analgesic that is an analogue of fentanyl. 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 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 early 2000s, and novel derivatives continue to appear.