Codeine will show up on urinalyses as Heroin due to the fact that the liver metabolizes about 6 to 12% of the codeine to morphine. Heroin, which is the morphine molecule with two acetyl ethers instead of alcohol groups at the 6 and 3 positions, also metabolizes to morphine - in this case the conversion is far more rapid and very nearly complete - in just an hour or so virtually all of an injection of heroin will have been converted to morphine.
Oxycodone usually will not show up AS MORPHINE. However, it is usually tested for since it has become so very popular, especially in Appalachia. Also worth noting, those taking large doses of oxycodone can test positive for morphine since there is a liver metabolic pathway that does take (IIRC) about 1% or less of a dose of oxycodone to morphine.
Modern urinalyses cannot be fooled very easily. I would venture a guess and say the most likely way to "beat" a urine test would be to somehow smuggle a small quantity of drug-free, fresh, warm (37C/98F) urine in and have that tested. I don't really want to help you beat a drug test, so I'm not going to go further with that.
TL;DR
When it comes to opiates, urine tests are looking for addicts (people who take drugs every day without prescription). If you want to pass the test, stop taking drugs for a week (and don't smoke pot for much longer of course!) before you go in to pee. If you can't stop taking drugs for a week, the test is looking to catch you.
Oxycodone is an "opioide" and will show up on drug screenings. See: http://en.wikipedia.org/wiki/Oxycodone
can you fail a drug test if you take hydrocodone and oxycodone at the same time
Most likely if it is the more modern advanced drug tests then no it will show up differently.
Endocet contains oxycodone so yes.
yes if it is a urine test
yes after 8 hours
Yes, they do as they are both oxycodone. If taken in high doses for long periods of time, if they test separately for oxycodone & opiates u can test positive for both because any opiate will eventually metabolise into morphine.
Yes it does, but certain tests can determine what pill you take.
Usually drug tests only test for the metabolite of opiates in your urine. So yes oxycodone will show up in a urine based drug test. Demerol being fully synthetic on the other hand may not.
yes
5 panel tests are urine tests. To answer your question, yes, a hair test will flag positive for hydrocodone and oxycodone(same thing as roxicodone) depending on whos testing you, a GS test will verify and tell them exactly what it is.
Same place you get urine tests that test for weed or crack--go online and search for drug test kits. There are several vendors.