A 58-year-old female asked:
I take 5mg oxycodone 4 times a day but i drug test negative why?
2 doctor answers • 4 doctors weighed in
Anesthesiology 17 years experience
Many explanations : The drug tests do fail sometimes in a small group of people. Also, it depends on what exact they are testing you for, it is possible that they were testinf you for iliigal drugs specifically and you only take legal ones.
4.6k viewsReviewed >2 years ago
Anesthesiology 35 years experience
Drug tests: It is probably a combination of the tester using a cheap, lower sensitivity testing kit, testing during a low level of the drug in your system and you being a fast metabolizer. Oxycodone has a half life of about 3-4hrs. If you test several hours after your last dose the levels in you urine may be too low for the test to pick up. Also, only a small amount of the drug appears in the urine.
4.4k viewsReviewed >2 years ago
Last updated Apr 17, 2016
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