Drug info - fentanyl compared to oxy's, which is better

[frankz81]

if both fentanyl and oxycodone were both iv'd, in equivalent equianalgesic doses, which would be the best value for money in terms of euphoria and the time it lasts, the high effect after the euphoria and most sedating and relaxing?
swim asks as he had shitloads of fentanyl when on methadone but without any effect, has since done a detox and uses alot of oc's with alot of fun to be had, but now wonders about fentanyl and if he should try and source the fent and leave the oc's alone.
i ask as the euphoria from the ocs last the best of abut 2-3 minutes and getso really pissed off that it doesnt last any longer