I am guessing you are using the big endo opana IR pills with over 180-190 mg of filler (The big blue/red pills) as you have 5 mg and 10 mg. Unless you are using pure oxymorphone powder, the old opana ER formula, or the roxanne IR (I have read) than you will not get good results snorting it. You might if you snort it slowly in small amounts over time.... You can also plug it with an oral syringe, which I have found to work somewhere between the nasal and oral route in terms of strength. There is also IV if you have 0.2 micron filters laying around to work with, but I would recommend against making a habit of it and even doing it with any lesser materials as anything below a 0.2 micron wheel filter is unacceptable (Ie: No cotton ball filtering and no cigg tip filtering). You will not get the same high as hydrocodone or any codine formulation.
As someone mentioned oxymorphone does act very different in the high and is more physical than mental. When I read an article that listed what opiate receptors different opiates bound to I noticed that morphine bound more selectively to the delta opiate receptor with oxymorphone being near completely selective to that one, but codine being more susceptible to the kappa receptor. I also noticed that delta had 2 sub-types with one being just sedation and the other having the euphoria, analgesia, nausea, and other symptoms, while the other receptors (sigma/kappa) had only a single type with a wide variety of effects like the second delta receptor type. I might not be explaining this well, but I hope it helps explain the difference between the two main opiates being codine and morphine and they way they affect the body differently being one is more mental and the other physical. This is mainly speculation on my part.
Honestly though you sound like you have NO idea what you are getting into.... You also sound like you need to work on your opiate habit if you are just looking for HIGH-powered drugs It is going to be a bitch when you do need it for medical reasons and it does not work. If you are using it for medical reasons remember it is just a symptom management tool and not a solution to your problem even if it is a missing limb. There are much more powerful drugs and I honestly would not consider opiates powerful compared to things like psychedelics..... Hell they are pretty weak as they can easily lose their strength over time.
Edit: Do not eat them... 10% BA and it takes a loooooong time to work. Snort them as they are 40% BA that route. I sometimes take a lil' bit of the old ER and smoke it and get REALLY strong nodds due to it although feel it is a waste (Smoking pills is a BAD idea and unhealthy). The old ER are octogons like the ones you ate and the new ones are round.
Edit 2: If you can not get effect snorting it you need a break.... 20-40 mg a night is more than enough for me with a small tolerance. Try taking a norco and than snorting some as they combine very very well. Also make sure when you break it down that you separate the white powder from the waxy outside. I use a razorblade and tweasers to cut it off by cutting it in half, cutting the large flat side off, and than cutting each side off leaving as little powder on it as possible and than scrape the powder off while holding them with tweezers. It is some work, but I make 6 lines out of 10 mg and get really good results doing one in each nostril at a time. Hope it helps. Also be VERY careful with doing too much as it is easy to do too much get sick and have a headache the next day. It also takes up to 30 minutes for effects to develop and up to an hour to get to full strength.
