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Dr. Andrew Rynne

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Can drug test detect lasix in urine?

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Dr. Rahul Tawde

General & Family Physician

Practicing since :1980

Answered : 1 Question

I took 40 mg of lasix on Monday afternoon around 5 p.m. Willit be detected inmy urine at all on Thursday morning? This is because of a drug test I take on thursday morning
Tue, 29 Jan 2013 in X-ray, Lab tests and Scans
Answered by Dr. Rahul Tawde 14 minutes later

Half life of furosemide is about 100 minutes. That means that in 100 minutes, half the drug is cleared.

It takes 5-6 half lives for a drug to be out of your body; so for lasix/furosemide, that would be 600 minutes or 10 hours. Thus, you should be clear by Tuesday morning and Tuesday afternoon for sure.

Let me know if you need any more clarifications.

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