hydromorphone is much different than oxy. Oxy doesnt make you rush, whereas the dilaudid rush is widely considered to be one of the strongest and post pleasurable. also, dilaudid has a low oral bioavailability, and a short duration, meaning that to feel strong effects, it must either be snorted or plugged (IV is a popular ROA, but I'm not reccomending it, as IV use is very unsafe, especially with pharmaceutical pills that contain adulterants which can be harmful to your veins, and even micron filtering is gonna be of much help. Dilaudid is usually very fiendy, creating a strong impulse to redose after the effects start to wear off, due to it's euphoric rush and short duration, creating a pattern of repeated use similar to that of insufflated cocaine or methamphetamine. Oxycodone is much different, having a reasonably solid duration, no rush to speak of, and a less sedating, more stimulating high. It's generally less euphoric, although oxycodone's euphoria is much smoother, less fiendy, longer lasting, and generally a more standard, "normal" opiate. 2mg hydromorphone insufflated was stronger than any dose of oxy I've ever taken. I did that 2mg while i had 0 tolerance, though, so your dose will be a lot higher if you are a regular user. you withdraw from hydromorphone very quickly, and generally most opiate addicts i've met don't use it simply because they cannot afford it with the regularity of which they had to use it to avoid WDs and stay euphoric, as the short duration causes more intense, immediate cravings, which creates more problems for your average heroin addict, who is used to fixing up around 3-6 times a day, and will have to dose hydromorphone around once every hour or two, WDs starting after 3 hours of abstinence. It's fun now and then, but don't make it a habit, stick to your oxy as much as possible, dilaudid will steal your soul quicker and more violently than heroin, cause it really is that good. IMO it's like taking the fiendiness of meth and combining it with the WDs of heroin. Not fun.