Oxycodone, derived from thebaine, is speedy, stimulating and an uplifting high. Heroin, very similar to morphine but stronger, is way more sedating and brings with it a “pins and needles” rush with it that no other opioid can match. I believe that if both doses were IVd, I’d be able to know what the heroin was immediately due to the rush. Someone that isn’t as experienced probably won’t have as easy as a time differentiating.
Diacetylmorphine - Heroin
Diacetyl - an organic compound, natural by-product of fermentation and can be found in foods like butter, yogurt, and wine. Apparently this compound is what gives heroin it's perfect lipid solubility. "breaks down an object & creates an ultra explosive reaction"
Lipid solubility - dissolve in or move through the lipid (fat) portion of biological membranes, like those surrounding cells. Essentially, it describes how easily a molecule can pass through the oily barriers in the body, influencing how it's absorbed, distributed, and eliminated. This is how heroin crosses the blood brain barrier ultra fast & into all parts of the body.
Heroin tricks the body into thinking it has in infection, so histamine is released instantly. Also the high lipid soluble natural, allows it to stimulate & disconnect the CNS instantly creating the "rush" feeling or separation from one's nervous system. Haldol IV, Clonidine IV, and Hydromorphone IV feel similar. Hydromorphone IV is considered to have more of a "rush" than heroin lb per lb
By adding a steroid to an opioid, it creates a similar effect of diacetyl, making the opioid more lipid soluble & helps it to cross the blood brain barrier easier/faster.
In 2014, a drug called MoxDuo almost made it to market which combined Morphine & Oxycodone ( 14mg morphine & 8mg oxycodone). Since oxycodone crosses the blood brain barrier 3 times faster than morphine, this drug was most likely rejected for potential abuse & addicting aspects because it was basically a way to market heroin.