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NxStep Onsite drug and alcohol test device

DrugCheck® NxStep Onsite Urinalysis Test Cup

This easy to use, on-site drugs of abuse screen combines a collection cup and testing device that delivers instant results, convenience, and accuracy. The self-contained urinalysis screening cup detects the presence of drug metabolites in minutes.


FDA 510(k) cleared for 17 drugs of abuse

Tests are available in configurations of up to 15 of the following drugs and/or adulterants. Click on individual test strip colors below for more information on these FDA 510(k) cleared drugs. Note: All cutoffs are in ng/mL.

Amphetamine 1000 Barbiturate 300
Buprenorphine 10Benzodiazepine 300
Cocaine 150 & 300MDMA/Ecstasy 500
Meth 500 & 1000Methadone 300
Opiates 300 & 2000Oxycodone 100
Phencyclidine 25Propoxyphene 300
TCA 1000 Marijuana/Cannabis 50



Canada Class III approved medical device link image

The NxStep Onsite Drug Screen Cup is also Health Canada Class III licensed for 24 drugs and cutoffs for near-patient use, such as physicians’ offices. LEARN MORE



Other drugs and cutoffs available

The following drugs are available in certain configurations of DrugCheck cups for international distribution or forensic use. Note: Cutoffs in ng/mL, except alcohol (%BAC). Some drugs/cutoffs available by special order only ( * ) — contact your sales representative for more information.

Amphetamine 300, 500 Benzodiazepines 200
Buprenorphine 5* Alcohol 0.04%
Cocaine 100*Cotinine 200
EDDP 100 Fentanyl 10
Ketamine 1000 Marijuana/Cannabis 25*
Methadone 200* Methamphetamine 300
Opiates 100*, 3500* Tramadol 200*
K2/Spice 25, 50   


As easy as 1—2—3

Simply collect urine into the cup, remove the privacy label, and read the results in just 5 minutes. The cup does all the work!

Presumptive Positive: One colored line is visible in the control (C) zone for that drug. No colored line whatsoever appears in the test (T) zone, indicating a presumptive positive result for the corresponding drug.



drug test results interpretation image

Negative: Colored lines are visible in both the control (C) and test (T) zones, indicating that concentration of the drug is below the detection limit of the test or not present.

Note: The test lines (T) may have varying intensity, either weaker or stronger in color than that of the control line (C). However, any indication of a line in the test region should be interpreted as a negative result.



NxStep Onsite cup procedure




All NxStep drug test cups are 100% made in the USA.


Drugs of abuse adulterant color chart image

Adulteration Tests

  • Creatinine (CR)
  • Nitrite (NI)
  • Oxidants/Bleach (OX)
  • pH
  • Specific Gravity (SG)
  • Glutaraldehyde (GL) - available for export only

Adulteration (specimen validity) results are obtained by direct comparison of the colored pads on reacted strips to color blocks on the Adulterant Color Chart. Adulterated urine will show result colors similar to those in the “Abnormal” columns of the color chart, either high or low. Unadulterated samples will show strip colors similar to those in the “Normal” column.

Superior technology — Made in the U.S.A.

What distinguishes the DrugCheck NxStep Onsite test cup from other on-site products is its ease of use. DrugCheck’s patented technology requires:

  • No handling or manipulation to activate testing
  • No tipping or tilting cup to activate test
  • No dipping reagent strips or test cards into specimen
  • No dripping specimen with pipettes