Nitrazine single dip test- NTZ Drug Test
$0.29 - $0.79
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FLAT RATE of $5.99 – all Orders Under 100 Strips
| Forensic use Drug test | |
| Nitrazine | |
| 1000 ng/ml | |
Choose quantity option
| Quantity | Price per strip |
Nitrazine Drug Test Strip
The Nitrazine Drug Test Strip provides targeted urine screening in a convenient single-panel dip-strip format for forensic testing applications. Designed for rapid presumptive screening, this specialty urine drug test offers a practical option when a focused single-analyte test is preferred.
The straightforward dip-and-read format supports efficient testing without requiring a separate reader or complex laboratory equipment. Its compact design makes the test convenient for forensic screening programs seeking an easy-to-integrate urine testing solution.
With a 1000 ng/mL cutoff, this Forensic Use Only test provides targeted screening while supporting efficient specimen-testing workflows.
Key Features:
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User-Friendly: The single-dip format provides a straightforward way to work with nitrazine reagent, making the testing process simple and convenient for professional users.
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Rapid Reaction: Nitrazine produces a visible color response when it reacts with the appropriate sample, allowing results to be observed quickly.
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Easy Color Interpretation: The distinct color response of nitrazine makes the test straightforward to observe and interpret according to the manufacturer’s instructions.
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Single-Step Process: No additional equipment or complicated procedures are required, providing a convenient testing format for clinical and laboratory environments.
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Bulk Orders Available: Cost-effective bulk purchasing options are available for clinics, hospitals, laboratories, and other healthcare facilities.
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Proper Handling: For best performance, follow the manufacturer’s instructions carefully, use the test within its specified conditions, and interpret the color response within the recommended timeframe.
Nitrazine Drug Test Strip – Targeted Forensic Urine Screening
The Nitrazine Drug Test Strip is a single-panel urine screening device designed for targeted forensic testing applications. The individual dip-strip format provides a convenient alternative when a specific screening target is required rather than a broad multi-panel urine drug test.
This product is designated Forensic Use Only and should be used according to its specific product labeling, instructions for use, and package insert.
Targeted Single-Panel Urine Testing
Single-panel drug test strips allow testing programs to screen for a specific target without changing an entire multi-panel testing configuration. This can be particularly useful when expanding a forensic testing program to include specialty or emerging screening targets that may not be incorporated into conventional drug test panels.
The compact dip-strip format also makes individual tests easy to store, distribute, and incorporate into existing specimen-screening procedures.
Key Features
✓ Single-panel urine screening format
✓ 1000 ng/mL cutoff
✓ Rapid presumptive screening
✓ Convenient dip-and-read design
✓ No separate analyzer required
✓ Compact individually used test format
✓ Suitable for targeted forensic screening programs
✓ Forensic Use Only
Simple Dip-Strip Testing
The test uses a straightforward urine dip-strip format. Testing should always be performed according to the manufacturer’s instructions supplied with the product.
Users should follow the package insert for specimen requirements, immersion procedure, development time, interpretation window, storage conditions, quality-control information, and result interpretation. Do not substitute generalized drug-testing instructions for the directions supplied with the specific device.
Presumptive Screening and Confirmation
Rapid urine drug screening is intended to provide a preliminary or presumptive result. Screening results should be interpreted according to the manufacturer’s instructions and the procedures established by the testing organization.
When definitive identification is required, an appropriate confirmatory laboratory method should be used according to applicable forensic testing procedures.
Specialty and Emerging Drug Screening
Drug-testing requirements continue to evolve as testing programs encounter substances and screening targets that may not be represented on traditional urine drug panels. Single-analyte test strips provide a flexible way to supplement established testing protocols without requiring a completely different multi-panel device.
A targeted urine drug test can therefore be useful when a forensic program needs screening capability beyond its routine panel configuration.
Forensic Use Only
This product is designated Forensic Use Only (FUO). It is not represented by 12PanelNow as an FDA-cleared or CLIA-waived test. Users are responsible for reviewing the product labeling, package insert, instructions for use, and intended-use designation before testing.
How to Use a Nitrazine Single Dip Test:
Nitrazine Test Instructions:
Remove the Nitrazine Single Dip Test from its sealed packaging and use immediately for best results.
Carefully handle the test strip by the end opposite the testing area to avoid contamination.
Dip the testing portion of the strip into the specimen briefly, ensuring the reactive area is fully exposed to the sample.
Remove the strip and compare the resulting color change to the provided color chart or interpretation guide.
Read and interpret results immediately according to the product instructions. Delayed readings may affect accuracy.
Dispose of the used test properly after use.
How to Read a Nitrazine Single Dip Test?
Result
The test strip changes to a darker blue or blue-green shade, indicating a positive result.
Neutral/Normal Result
The strip displays a color within the expected range according to the interpretation chart provided with the test.
Invalid
If the strip does not change color properly or appears damaged, discard the test and repeat with a new strip. Improper storage or contamination may affect performance.
FAQ
What is a Nitrazine Drug Test Strip?
The Nitrazine Drug Test Strip is a single-panel urine screening test intended for targeted forensic testing. It provides a convenient dip-strip format when a specific screening target is required rather than a larger multi-panel drug test.
What is the cutoff level of the Nitrazine Drug Test Strip?
The current product information specifies a cutoff of 500 ng/mL.
What specimen is used with this drug test strip?
This product is being offered as a urine screening strip. Users should follow the specific manufacturer’s package insert for specimen collection, test procedure, timing, and interpretation requirements.
What does NITR mean on this drug test?
NITR is the product designation currently associated with this single-panel test. Users should refer to the manufacturer’s package insert and labeling for the complete analyte identification and technical specifications.
Why use a single-panel urine drug test?
Single-panel drug tests provide focused screening when a testing program needs to target one specific analyte. They can supplement broader multi-panel urine drug testing without requiring a completely different testing configuration.
Is this a rapid urine drug test?
Yes. This product uses a rapid dip-strip screening format designed to provide a presumptive result without a separate laboratory analyzer. Exact test and reading times should be taken from the manufacturer’s instructions supplied with the device.
Does a presumptive positive result provide definitive identification?
No. Rapid screening tests provide presumptive results. When definitive identification is required, an appropriate confirmatory laboratory method should be used in accordance with the testing program’s procedures.
Is the Nitrazine Drug Test Strip CLIA Waived?
No CLIA-waived claim is being made for this product. 12PanelNow is offering this specific test as Forensic Use Only (FUO).
A Reliable Choice for Nitrazine Testing
Choose the Nitrazine Single Dip Test from 12 Panel Now for dependable, fast, and easy screening. Designed for convenience and reliability, these tests help healthcare professionals perform quick assessments with confidence.
Why Choose 12PanelNow?
12PanelNow is committed to providing high-quality testing products that meet professional standards for reliability and performance. Our products are trusted by healthcare providers and facilities seeking affordable and dependable screening solutions.
Order your Nitrazine Single Dip Test today and experience the 12PanelNow difference.
1. FORENSIC USE ONLY PRODUCTS
Products labeled FORENSIC USE ONLY (FUO) are not intended to be used or represented as FDA-cleared clinical diagnostic devices when they do not possess such clearance.
FUO devices are intended for appropriate forensic drugs-of-abuse testing applications.
Appropriate users and settings may include:
- Court systems
- Police departments
- Law-enforcement agencies
- Probation departments
- Parole departments
- Juvenile detention facilities
- Prisons
- Jails
- Correctional facilities
- Appropriate governmental agencies
- Forensic laboratories
- Laboratories conducting appropriate forensic testing
- Other establishments performing forensic testing on behalf of qualifying law-enforcement, correctional, judicial or governmental entities
Products designated Forensic Use Only should be used only in accordance with their applicable labeling and intended use.
2. NOT FOR CLINICAL DIAGNOSIS
A product designated Forensic Use Only is not intended to diagnose, treat, prevent, monitor or identify a disease, illness, medical condition or drug dependency.
An FUO designation must not be represented by a purchaser, reseller or distributor as equivalent to FDA clearance for clinical diagnostic use.
3. AT-HOME AND OVER-THE-COUNTER USE
Unless the particular device is specifically cleared, authorized and labeled for home or Over-the-Counter use, a product labeled Forensic Use Only is not intended to be marketed or sold as a consumer At-Home or OTC diagnostic product in the United States or its territories.
Customers, distributors and resellers are responsible for maintaining the intended-use designation when advertising or redistributing these products.
4. EMPLOYMENT & INSURANCE PRODUCTS
Certain drugs-of-abuse testing devices may be specifically labeled for Employment & Insurance testing.
Where permitted by the specific product’s labeling and regulatory status, Employment & Insurance applications may include certain:
- Pre-employment testing
- Workplace testing
- Random workplace testing
- Reasonable-suspicion or reasonable-cause testing
- Post-accident testing
- Return-to-duty workplace testing
- Insurance-related screening
An Employment & Insurance designation does not automatically apply to every FUO product or every drug-testing product sold by 12 Panel Now.
The specific labeling and intended use of the individual product controls.
5. FEDERAL DRUG-TESTING PROGRAMS
Employment & Insurance products must not automatically be assumed to satisfy the requirements of federally regulated drug-testing programs.
Unless the particular product and testing methodology are authorized for the applicable program, customers must not assume that a general Employment & Insurance drug test is appropriate for federally regulated programs including those involving:
- S. Department of Transportation (DOT)
- Substance Abuse and Mental Health Services Administration (SAMHSA)
- S. Military
- Other federal drug-testing programs having specific regulatory requirements
Customers performing federally regulated testing are responsible for ensuring that the specimen type, collection process, chain-of-custody procedures, laboratory testing, confirmatory testing, Medical Review Officer requirements, reporting and other elements of the testing program comply with applicable federal requirements.
6. SPECIALTY AND EMERGING DRUG TESTS
12 Panel Now carries standard and specialty drug-testing configurations.
Depending upon the particular product, labeling, configuration and regulatory status, products testing for certain specialty or emerging analytes may be designated Forensic Use Only or possess another restricted intended use.
Examples may include products screening for:
- Fentanyl (FEN)
- Xylazine (XYL)
- Tianeptine / ZaZa (TIA)
- Kratom (KRA)
- Synthetic Marijuana / K2 / Spice
- Ethyl Glucuronide / EtG
- Alcohol (ALC)
- Cotinine (COT)
- Ketamine (KET)
- Lysergic Acid Diethylamide (LSD)
- Methaqualone (MQL)
- MDPV / certain synthetic cathinones sometimes referred to as Bath Salts
- Psilocybin / mushroom-related screening configurations
- Other emerging or non-standard drug analytes
The appearance of an analyte on this list does not mean that every test containing that analyte is automatically classified as Forensic Use Only.
Different products testing for the same substance may possess different regulatory classifications.
Always follow the regulatory designation and intended-use labeling of the specific product.
7. FENTANYL PRODUCTS
Fentanyl testing products are available in different formats and may possess different intended uses and regulatory classifications.
Customers should therefore not assume that all fentanyl test strips, cups, dip cards, cartridges or other fentanyl-testing devices have the same regulatory status simply because they detect fentanyl.
The designation applicable to the particular product controls.
8. ORAL FLUID AND SALIVA TESTING
Certain oral-fluid or saliva drug-testing devices and configurations may be designated Forensic Use Only or have other intended-use restrictions.
The regulatory status of a urine-testing device must not be assumed to apply to an oral-fluid device, or vice versa, merely because both devices test for similar substances.
Customers should verify the designation applicable to the specific oral-fluid product.
9. RAPID TESTS PROVIDE SCREENING RESULTS
Unless the applicable product labeling expressly provides otherwise, rapid drugs-of-abuse tests are screening devices.
A preliminary positive, presumptive positive or non-negative screening result should not automatically be regarded as a definitive laboratory-confirmed result.
Where confirmation is required by law, regulation, employer policy, court procedure, correctional policy, insurance program or other applicable standard, confirmatory laboratory testing should be performed using an appropriate confirmatory methodology.
10. COLLECTION AND CHAIN OF CUSTODY
Organizations using drug-testing devices are responsible for implementing collection and handling procedures appropriate for their program.
Depending upon the application, this may include:
- Donor identification
- Specimen integrity procedures
- Chain-of-custody documentation
- Secure specimen handling
- Result documentation
- Laboratory confirmation
- Medical Review Officer review
- Record retention
- Confidentiality
- Reporting procedures
12 Panel Now supplies testing products but does not control the customer’s testing program or individual testing procedures.
11. PRODUCT INSTRUCTIONS CONTROL
Customers must follow all applicable manufacturer instructions, package inserts, cutoff information, warnings, limitations and interpretation requirements.
Website descriptions and general educational information do not replace the official labeling and instructions applicable to the individual device.
12. NO MEDICAL DIAGNOSIS
Rapid screening products should not be used as substitutes for medical diagnosis, clinical evaluation or appropriate laboratory confirmation where such services are necessary.
12 Panel Now does not diagnose medical conditions, substance-use disorders or drug dependency through the sale of a testing device.
13. CUSTOMER RESPONSIBILITY
The purchaser and user are responsible for determining whether the particular product is appropriate and lawful for:
- The intended application
- The intended testing program
- The intended end user
- The applicable jurisdiction
- The type of specimen being tested
- The purpose for which results will be used
Drug-testing requirements can vary based upon federal law, state law, local law, employment rules, correctional requirements, court procedures and other regulatory requirements.
14. DISTRIBUTORS AND RESELLERS
Customers who distribute or resell products purchased from 12 Panel Now are responsible for accurately communicating each product’s intended use and regulatory classification.
Resellers and distributors may not knowingly:
- Remove or conceal an FUO designation
- Represent FUO merchandise as FDA cleared for clinical use when it is not
- Market an FUO product for unauthorized consumer home use
- Make unsupported medical or diagnostic claims
- Change or misrepresent the intended use
- Make regulatory claims not authorized by the applicable product labeling
Resellers remain responsible for independent claims or representations they make to their customers.
15. REGULATORY STATUS MAY DIFFER BETWEEN PRODUCTS
12 Panel Now carries many different configurations, specimen types, panel combinations, specialty analytes and manufacturers.
For this reason, customers should never assume regulatory status based solely upon:
- The number of panels
- Analytes detected
- Product appearance
- Product name
- Cup design
- Test format
- Similarity to another product
The specific product’s regulatory status and labeling controls.
16. PRODUCT PAGE DESIGNATIONS
12 Panel Now makes reasonable efforts to identify relevant product classifications and intended-use restrictions on product pages and/or product documentation.
Customers who believe there is conflicting information between a website description and official product labeling should contact 12 Panel Now before using the product.
Official regulatory labeling applicable to the device takes precedence over general website marketing copy.
17. CUSTOMER ACKNOWLEDGEMENT
By purchasing, receiving, distributing, reselling or using a product designated FORENSIC USE ONLY, EMPLOYMENT & INSURANCE, or otherwise subject to an intended-use restriction, the customer acknowledges and agrees that:
The customer has reviewed or will review the applicable product labeling and intended-use designation.
The customer is responsible for determining whether the product is appropriate for its intended application.
The customer will not knowingly use, advertise, distribute or resell a product in a manner inconsistent with its designated intended use.
The customer is responsible for complying with applicable federal, state and local requirements.
The customer understands that availability for purchase from 12 Panel Now does not mean that every product may be legally used for every application.
The customer understands that similar drug tests may possess different regulatory classifications.
The customer will seek clarification from 12 Panel Now before purchasing or using a product if its intended-use designation is unclear.
18. QUESTIONS REGARDING REGULATORY CLASSIFICATION
If you are uncertain whether a particular product is:
FDA Cleared
CLIA Waived
Forensic Use Only
Employment & Insurance
Professional Use
or subject to another regulatory or intended-use designation, please contact 12 Panel Now before purchasing, distributing, reselling or using the product.
19. CONTACT 12 PANEL NOW
12 Panel Now
801 N Congress Ave., Suite 101
Boynton Beach, FL 33426
Telephone: 561-897-9238
General Customer Service:
[email protected]
Product Classification / Regulatory Questions:
[email protected]
IMPORTANT CUSTOMER NOTICE
A PRODUCT’S SPECIFIC LABELING AND INTENDED-USE DESIGNATION CONTROLS.
Do not assume that one drug-testing device has the same regulatory classification as another device merely because it screens for the same drug or drugs.
By purchasing or using a product labeled Forensic Use Only, Employment & Insurance, or otherwise subject to an intended-use restriction, the purchaser acknowledges responsibility for using and distributing the product consistently with its applicable labeling and applicable law.
FORENSIC USE ONLY (FUO), EMPLOYMENT & INSURANCE USE
CUSTOMER ACKNOWLEDGEMENT & STATEMENT OF INTENDED USE
Effective Date: August 29, 2026
Last Updated: August 29, 2026
12 Panel Now offers a wide range of drug and alcohol screening devices with different regulatory classifications and intended uses.
Some products and configurations are designated FORENSIC USE ONLY (FUO). Other products may be designated for Employment & Insurance (E&I) applications.
Still other products sold by 12 Panel Now may be FDA Cleared, CLIA Waived, intended for professional use, or possess another regulatory designation.
Not every drug test sold by 12 Panel Now has the same regulatory status. The purchaser and end user are responsible for reviewing the product page, package labeling, instructions for use, package insert and intended-use designation applicable to the specific product being purchased.
What Shows Up as AMP on a Drug Test?
Drug tests detect amphetamines by looking for the presence of the drug or its metabolites. In the case of amphetamines, one primary metabolite is amphetamine itself, and another is 4-hydroxyamphetamine. Most often, immunoassay screening tests are used first, which are highly sensitive but not highly specific. If this test is positive, then a confirmatory test using a method like gas chromatography/mass spectrometry (GC/MS) or liquid chromatography/mass spectrometry (LC/MS) is often used, which is both highly sensitive and highly specific. These tests can distinguish amphetamine from other substances that might cause a false positive on the screening test.
How long after use can amphetamines be detected in an AMP Drug Test?
The detection window for amphetamines depends on several factors including the type of drug, the frequency and amount of use, the individual's metabolism, and the type of test used. However, generally, amphetamines can be detected in urine for 1-3 days after use, in blood for about 12-24 hours, in saliva for 1-2 days, and in hair for up to 90 days.
What Is the Difference Between Amphetamine and Methamphetamine?
An amphetamine is a prescription drug stimulant such as Adderall. It is similar to methamphetamine or meth in that both create a ‘high’ or a feeling of euphoria. However, meth is illegal. It works much faster in the brain than methamphetamine; thus, users prefer the former to get the ‘high’ feeling more quickly.
Can an AMP Drug Test return false positives?
Yes, although it's rare, an Amphetamine Drug Test can return a false positive. Some over-the-counter medications, certain prescription drugs, and even some foods may cause a false positive result. If you believe your test result is a false positive, you should communicate this to the testing administrator and request a confirmatory test, such as a gas chromatography-mass spectrometry (GC-MS) test.
What are the consequences of a positive Amphetamine Drug Test?
The consequences of a positive AMP Drug Test depend on the context in which the test was administered. In a workplace setting, it may lead to disciplinary action, including potential termination. In a legal context, it could impact parole, custody cases, or other court-related matters. In a medical setting, it might necessitate changes to a treatment plan.
Can prescription medications lead to a positive Amphetamine Drug Test?
Yes, prescription medications that contain amphetamines, such as Adderall, used for treating attention deficit hyperactivity disorder (ADHD), can cause a positive result on an AMP Drug Test. If you're taking a prescription medication, it's essential to disclose this information prior to the test to prevent any misinterpretation of results.
| Weight | 0.01 lbs |
|---|---|
| Dimensions | 3 × 2 × 1 in |
| Drug tested | NITR |
| As low As | As low As |
| Price | $0.39 |
| Status | Forensic Use |
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All Orders Will Be Shipped the Same Day If Placed Before 3:00 PM EST.
Next-day Shipments Will Not Be Delivered on Weekends, and That the Time Taken on Air Shipments Should Be Counted as Business Days.

Why Does My Tracking Info Still Say "Label Created, Not yet in the System" When I Placed It X Days Ago?
If your order was placed via USPS, sometimes your label might not show up in their system even 1-3 days after they have received the package. The same can happen for UPS orders, although they almost always show up in their system the night which they are shipped. If you have any questions regarding the status of your order, please contact us and we will investigate the matter.
If I Pay for a next Day Air Delivery, Am I Guaranteed to Receive It the next Day?
Air deliveries performed by UPS are counted via business days, so you will receive your package the business day after it has been shipped. We also do not ship orders placed after 4 pm EST on the same day, so Next Day orders placed after 4 pm will be shipped the following business day.
Why Can't I Check the Tracking of My Package?
After you place your order, an email will be sent to you with the tracking number within a business day. If you did not receive this email, it's possible that the e-mail was entered incorrectly, sent to your spam folder, or blocked. If you did not receive this email, please call or email us and we'll be happy to give you the status of your shipment.
I Placed My Order but I No Longer Need It. Can I Return It and Get a Refund?
We accept returns for unused items as long as they are placed within 30 days after the day they are purchased. Although shipping is free upon order, we still incur a cost for every order that is shipped, and you will be refunded the amount of your order once we receive the returned goods, minus the cost of shipping.

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