For how long can drugs be detected in urine?

Each drug is cleared by the body at different rates. When you can find drugs in the urine depends on the drug taken, how often the person takes the drug, and how the drug was taken. The table below shows minimum and maximum times you can detect drugs in urine.

Drug Street Name
Approximate Detection Time


Amphetamine (AMP)

speed, amp, black beauties

2 to 7 hours

2 - 4 days

Cocaine (COC)

coke, snow, blow, candy, crack

1 to 4 hours

2 - 4 days

Ecstasy (MDMA)


2 to 7 hours

2 - 4 days

Methamphetamines (MET)

crystal meth, meth, speed, glass

2 to 7 hours

2 - 4 days

Opiates (OPI)

heroin, morphine

2 hours

2 - 3 days

Phencyclidine (PCP)

Angel Dust, rocket fuel

4 to 6 hours

7 - 14 days

Marijuana (THC)

pot, grass, weed, doobie, joint, roach

2 hours

up to 40 days**



2-7 hours

1-4 days


downers, barbs, red devils

2-4 hours

1-3 weeks


amdone, chocolate chip cookies, fizzies

3-8 hours

1-3 days

Tri-cyclic Antidepressants

8-12 hours

2-7 days


Os, Ox, cotton, blue

1-3 hours

1-2 days

** sometimes longer depending on smoking patterns

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What are drug cut-off levels?

The Substance Abuse and Mental Health Services Agency (SAMHSA), has established “cut - off” levels when testing for drugs of abuse. First Check® is manufactured to conform to those standards. Screening tests may not detect amounts of drugs in a urine sample that are below the cut-off level.

In other words, though some level of drug may be present in a urine sample, the sample would still be considered a NEGATIVE screening result if the drug level is below the cut-off level.

Samples at or near the cut-off level have the greatest margin of error.


Drug Name

Cut-off Level



1000 ng/ml



300 ng/ml



500 ng/ml



1000 ng/ml


Opiates (morphine,heroin,codeine)

2000 ng/ml



25 ng/ml


Marijuana (Tetrahydrocannibinol)

50 ng/ml


300 ng/ml


300 ng/ml


300 ng/ml

Tri-cyclic Antidepressants

1000 ng/ml


100 ng/ml

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Test limitations

The test instructions must be followed precisely.

The First Check® Multi Drug Cup is not reusable

Only human urine samples can be used with this test.

If the sample or test are cold, you must bring them to room temperature before you begin.

The test will only give accurate results on urine samples. Bleach, cleaning supplies and other liquids may dilute the urine causing inaccurate results.

Drinking large amounts of liquids may dilute the urine so that the drug (if present) cannot be detected.

Once the test has been started, the result needs to be read after 5 minutes but before 10 minutes has passed.

Failure to use the First Check® Multi Drug Cup as directed may result in an inaccurate screening result.

Our laboratory must receive the sample for confirmation testing within seven days.

Liability is limited to the purchase price of this test kit.


Please Make Note

Please make note that I, Jessica Lynn Hepner the creator of What Every Parent Should Know, is not giving legal advice. I am not a lawyer. I am giving you knowledge via first hand experiences.

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Save A Life by Angie Kassabie

Save A Life by Angie Kassabie
I URGE ALL MY FRIENDS TO READ & SHARE THIS; YOU COULD SAVE A LOVED ONES LIFE BY KNOWING THIS SIMPLE INFORMATION!!! Stroke has a new indicator! They say if you forward this to ten people, you stand a chance of saving one life. Will you send this along? Blood Clots/Stroke - They Now Have a Fourth Indicator, the Tongue: During a BBQ, a woman stumbled and took a little fall - she assured everyone that she was fine (they offered to call paramedics) ...she said she had just tripped over a brick because of her new shoes. They got her cleaned up and got her a new plate of food. While she appeared a bit shaken up, Jane went about enjoying herself the rest of the evening. Jane's husband called later telling everyone that his wife had been taken to the hospital - (at 6:00 PM Jane passed away.) She had suffered a stroke at the BBQ. Had they known how to identify the signs of a stroke, perhaps Jane would be with us today. Some don't die. They end up in a helpless, hopeless condition instead. It only takes a minute to read this. A neurologist says that if he can get to a stroke victim within 3 hours he can totally reverse the effects of a stroke...totally. He said the trick was getting a stroke recognized, diagnosed, and then getting the patient medically cared for within 3 hours, which is tough. >>RECOGNIZING A STROKE<< Thank God for the sense to remember the '3' steps, STR. Read and Learn! Sometimes symptoms of a stroke are difficult to identify. Unfortunately, the lack of awareness spells disaster. The stroke victim may suffer severe brain damage when people nearby fail to recognize the symptoms of a stroke. Now doctors say a bystander can recognize a stroke by asking three simple questions: S *Ask the individual to SMILE. T *Ask the person to TALK and SPEAK A SIMPLE SENTENCE (Coherently) (i.e. Chicken Soup) R *Ask him or her to RAISE BOTH ARMS. If he or she has trouble with ANY ONE of these tasks, call emergency number immediately and describe the symptoms to the dispatcher. New Sign of a Stroke -------- Stick out Your Tongue NOTE: Another 'sign' of a stroke is this: Ask the person to 'stick' out his tongue. If the tongue is 'crooked', if it goes to one side or the other that is also an indication of a stroke. A cardiologist says if everyone who gets this e-mail sends it to 10 people; you can bet that at least one life will be saved. I have done my part. Will you?

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