Question: how long does it take for klonopin to not show up in urine?
Answer: It has a long half-life and can remain in a person's system for weeks. In studies, Klonopin was detectable on a urine test for up to a month, on a hair test for up to 28 days, and on a saliva test for up to 5 or 6 days. Abuse of Klonopin can lead to addiction and physical dependence.