Jul 20, - 5 Answers (question resolved) - Posted in: ativan, anxiety, urine test - Answer: It will show for at least 3 days and probably longer, it can show How long does Lorazepam stay in your urine if I. Jun 27, - A benzodiazepine drug, Lorazepam, whose brand name is Ativan, is a from your body; Drugs tests for Ativan; Who all can be subjected for testing of Ativan? . Older people can show up to 22% slower elimination rate as. Xanax and Ativan are two completely different compounds and do not metabolize to the same Randy Shaver, Chemist who performed urine drug testing for years. How long does Ativan stay in your system, and does it show up like Xanax?