The difference between shooting opioid pills and loperamide is, we know how things like oxycodone, heroinetc act. We know the potency and we know the affinities for the different receptors.
With loperamide we only know that it's structure is somewhat related to methadone, piperidine and pethidine, but we don't know the actual potency and the affinities for the receptors in your brain.
What if it's as potent as fentanyl (I know this is most likely exaggerated and I've read a paper stating that loperamide is around three times more potent than morphine)?
And by inhibiting your P-glycoproteins you don't know how much loperamide gets through the BBB without getting pumped back.
And what if loperamide has a higher affinity to the opioid receptors than naloxone? Imagine you OD and naloxone won't do shit.
Plus loperamide can cause in the worst case lethal heart problems (I know that methadone can prolong the Q/T interval too, but my point is, it's just dangerous)
My point is, it's just to dangerous to fuck with and the reward is negligible.
We're agreed in that point. We really have limited knowledge about using Loperamide in this way. This fact makes it dangerous enough not to do. I thought Loperamide's closer chemical relative was Fentanyl?
I happened to read an article on Pubmed that involved altering Loperamide at a molecular level to enable it to cross the BBB easier. It involved coating the molecule with a PGP altering substance, I think. The result was that the subject experienced all of the classic effects of Opioid use. I forget if it was an animal or a human though and I'm really talking out of my ass here.
I agree that this experiment is probably useless, save for the knowledge angle. All of the work that was put into CWE'ing the pills, buying the pills etc. could have maybe be turned into successfully acquiring a real Opioid. What this is, is a sign of desperation. Sometimes addiction takes us to some pretty low places, but you have to set reasonable limits for yourself if you want to retain your good health. Behavior like this is really stepping over what should be a boundary.
Doing things like, just for instance, trying to inject Loperamide or Bupropion tablets, like I've said, are really a sign of desperation, where the need or desire to get high has trumped all of your ability to reason. When you reach the point where you're ready to potentially have an arm amputated just to catch a buzz, you need to take inventory of yourself. Someone once told me that Zolpidem (Ambien) was amazing for its rush. I was tantalized because I had access to Zolpidem and was at an obvious low point in my life. Then, I went on BL and read about someone who lost their arm for doing the same thing. I wanted to get high and truly didn't give a shit about myself, but I just had to admit that not everything is worth risking for a rush or a buzz. It's just not.
When you reach this point, as others have said, it's a good idea to consider detox or a psych ward visit to clear things up. You're at a point where you are not able to take care of yourself appropriately and need to let others do it for you. It doesn't mean your permanently fucked, but you need help. You can keep doing Opioids for however long you want, but you need to set limits. No one wants to see you die or see you lose a limb OP.