^Loperamide & rapid detox via induced coma and then injection with naloxone/naltrexone have both killed people and are not recommended, it's opioids, not benzodiazepines, so you may as well just try to cold turkey it most of the symptoms are psychological which make the physical symptoms feel legitimately overwhelming but you're not at risk of dying unless you have like certain serious medical conditions which then I would suggest asking your doctor to slowly taper you down using the opioid you were dependent on or using a 24hour time-released opioid like certain morphine formulations, or hydromorphone too, which are used in the rest of the world giving people much better options than the USA where we have only have methadone and buprenorphine indicated for opioid cessation, and DR's are notorious for abruptly discontinuation of opioid medication in patients long dependent and either dropping them completely or forcing a much too rapid taper so some people have no choice but to cold turkey it. The longer you go without using, after a while, it really does becomes a bit easier, just don't put yourself in situations where you know you'll be able to use opioids. Not sure if you're an addict, pain patient, both, but either way, the hyperalgesia does go away if you just keep at it.
TL;DR I suggest CT WD because it seems like the relapse rate are lower if you don't go onto maintenance w/ buprenorphine or methadone, and those two drugs both have a large list of set backs that make them less than ideal for some people. Also, both are infamous for having much more severe and persisting withdrawal syndroms, both post and acute.