A member asked:

How long does percocet, vyvance and ativan (lorazepam) stay in your system so that they show up in blood and urine drug tests? i take low doses.

3 doctors weighed in across 3 answers
Dr. Jay Bayer answered

Specializes in Family Medicine

If have legitimate prescriptions and reasons for taking these then you must be honest in providing this information to testing party. Ativan (lorazepam) has long half life, but i suggest be honest if their use is legit.

Answered Nov 27, 2016



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Dr. Masoud Sadighpour answered

Specializes in Sleep Medicine

Medication list you provided are different, but to be safe, I should say that drug screen might be positive for as long as 6 weeks.

Answered Mar 17, 2017


Dr. Morton Levitt answered

Specializes in Pathology, Anatomic and Clinical

Percocet can be detected in the urine for 2-3 days; vyvanse (lisdexamfetamine) can be detected in the urine for up to a week; and, Ativan for three days in the urine. Blood levels of all three are undetectable after 2-3 days under ordinary metabolism and an intact p450 enzyme system.

Answered Aug 6, 2018



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