U.S. doctors online nowAsk doctors free
A 58-year-old female asked:

I take 5mg oxycodone 4 times a day but i drug test negative why?

2 doctor answers4 doctors weighed in
Dr. Ionel Rad
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.
Dr. Fernando Garcia
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.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated Apr 17, 2016

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.