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A member asked:

How long till ativan (lorazepam) leaves the body for 2.5 weeks i've been taking anywhere from 1.5 mg to 1 and have not taken any since wednesday?

A doctor has provided 1 answer
Dr. Lynne Weixel answered

Specializes in Clinical Psychology

Half-life: To be conservative always use the top end of half-life ranges. Ativan's is 20hrs to have only half your last dose in your system. So, after approx a day you'd have less than 1 mg in you. After 2 days, .5 -- 3 days, .25 -- 4 days, .125. It should be totally gone by a week. It may be less - but I'm being conservative. Best!

Dr Altman and another doctor agreed

Answered 4/7/2016

3.9k views

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