Are you trying to find drug test kits among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling drug test kits on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 10 hours of research and did 65 drug test kits tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best drug test kits you can buy today
- ACCURATE AND RELIABLE: Detecting five widely-used substances，Amphetamine (AMP)-1000 ng/mL, Oxazepam(BZO)-300 ng/mL, Cocaine (COC)-300 ng/mL, Morphine (OPI 2000)-2000 ng/mL, Cannabinoids (THC)-50 ng/mL.
- EASY TO USE AND QUICK RESULTS: Remove the cap and dip the test into urine for 10 seconds. Please read the result in 5 minutes, not later. If two lines are present, it's a negative result; if only the control line appears, it's positive.
- CERTIFIED AND TRUSTED: Easy@Home Multi-Drug Screen Test employs the same scientific principles used in lab screening tests, ensuring you can trust its accuracy and reliability.
- VERSATILE APPLICATIONS: Perfect for home personal testing and families test need, random workplace testing, or preparation for Pre-employment screening.
- COMPREHENSIVE SUPPORT: Please do not hesitate to contact us with any questions you may have. Our experienced US customer service team is happy to help you get the best results.
![Prime Screen-12 Panel Multi Drug Urine Test Compact Cup (AMP,BAR,BUP,BZO,COC,mAMP/MET,MDMA,MOP/OPI,MTD,OXY,PCP,THC) C-Cup-[1 Pack]](https://m.media-amazon.com/images/I/41HWnpixp2L.jpg "The 8 Best drug test kits of %currentyear% 25")
- RELIABLE: CLIA Waived for home or over-the-counter (OTC) use. Same technology used as Lab screening test. Results are accepted in most professional and clinical settings.
- COMPREHENSIVE: This lab grade test can detect 12 drugs simultaneously: AMP,BAR,BUP,BZO,COC,mAMP/MET,MDMA,MOP/OPI,MTD,OXY,PCP,THC
- ACCURATE: More than 99% accurate; Cutoff level: AMP - 1000 ng/mL; BAR - 300 ng/mL; BUP - 10 ng/mL; BZO - 300 ng/mL,COC - 300 ng/mL; mAMP/MET - 1000 ng/mL; MDMA - 500 ng/mL; MOP/OPI - 300 ng/mL; MTD - 300 ng/mL; OXY- 100 ng/mL; PCP- 25 ng/mL; THC - 50 ng/mL
- EASY TO USE: Simply remove cap, collect urine in test cup, wait a FULL 5 minutes and read result; The disposable plastic gloves are INCLUDED. It is negative if 2 lines appear, and it is positive if only control line apperars. NOTE: A faint test line still means negative, and DO NOT read result AFTER 5 minutes.
- More than 99% accurate in detecting specific drugs according to the designated cut-off levels
- Easy to use-just dip the test into urine and read results in 5 minutes, 2 lines appears if clean, 1 control line only appears if not clean; DO NOT read the result after 5 minutes to avoid invalid result.
- FDA Cleared and CLIA Waived for OTC use;
- Minimum and Maximum detection time for each drug show typically how quick and how long the urine drug test can detect this drug in urine sample. The detection time varies greatly depending on the how often and how much of drug use as well as metabolism rate of each person. Please refer to the product instruction for detection window of each drug.
- The test provides only preliminary test results. A more specific alternative chemical method must be used in order to obtain a confirmed analytical result.
![Prime Screen [5 Pack] 5 Panel Urine Drug Test Kit - Testing Instantly for 5 Different Drugs AMP, COC, MET (Meth), OPI, THC (Marijuana) - WDOA-254](https://m.media-amazon.com/images/I/41L++1oYoRL.jpg "The 8 Best drug test kits of %currentyear% 30")
- Accurate and Reliable - 510(k) Cleared for Home Use (OTC Use) and professional use. Over 99% accurate in detecting 5 drugs according to the recommended cut-off level: AMP-1000ng/ml, COC-300 ng/ml, MET-1000ng/ml, OPI-2000 ng/ml, THC-50 ng/ml.
- Easy and Fast - Dip the test in urine for 10 seconds and read the result in 5 minutes. 2 lines appears if clean; 1 control line only appears if not clean.
- Multi-scenario Usage - Ideal for workplace/ Teens screening at home / Pain Clinics/ Rehab Center / Criminal justice & Law enforcement/ Lab screening test.
- Peace of Mind - Test yourself, your staff or your family member regularly to know when you or they are safe to take official tests at work, school or any other institution.
- 100% Customer Satisfaction Guaranteed - Your satisfaction is our NO.1 priority. With our 100% Customer Satisfaction Policy, we provide hassle-free replacement and step-by-step customer service. Feel free to contact our professional customer service team by sending message via Amazon.com for any concerns or questions you might have. Our dedicated team will try our best to resolve your questions timely.
- ★ ACCURATE: More than 99% accurate in detecting 12 different specific drugs according to the designated cut-off levels ; Marijuana (THC) commonly referred to as Weed, Opiate（OPI2000)，Amphetamine (AMP), Cocaine (COC)，Methamphetamine (MET) commonly referred to as Meth, Oxycodone (OXY), Barbiturates (BAR), Benzodiazepines (BZO), Methylenedioxymethamphetamine (MDMA/Ecstasy), Methadone (MTD), Phencyclidine (PCP), Tricyclic Antidepressants(TCA)
- ★ 510(k) Cleared for Home Use (OTC Use), CLIA Waived for professional use; Same science used as Lab screening test; cutoff level: THC-50ng/mL; OPI2000-2000ng/mL; AMP-1000ng/mL;COC-300ng/mL;MET/mAMP-1000ng/mL;OXY-100ng/mL;BAR-300ng/mL;BZO-300ng/mL;MDMA-500ng/mL;MTD-300ng/mL;PCP-25ng/mL; TCA-1000ng/mL; Note: this qualitative test kit provides only preliminary test results
- ★ EASY AND CLEAN: The test strips built-in drug test cup is easy and clean to use and has minimum chances to have user error or cause mess. Simply remove cap, collect urine in test cup and read results in 5 minutes, not later; The disposable plastic gloves are INCLUDED.
- ★ CLEAR and SENSITIVE: Clear and bold line appears quickly. It is negative if 2 lines appear and is positive if only control line appears. The negative result as quick as 1 minute. Each drug test cup has temperature strip for Specimen Validity. NOTE: A very faint test line still means a negative result.
- ★ SATISFACTORY EXPERIENCE: Feel free to reach out to us with any questions. Refund or returns are acceptable by brand owner,who is dedicated to be the best home use tests provider.
- EASY AND CLEAR: Remove cap, collect urine in test cup and read results in 5 minutes, not later; Clear and bold line appears quickly. It is negative if 2 lines appear and is positive if only control line appears. The negative result as quick as 1 minute. Each drug test cup has temperature strip for Specimen Validity.
- KNOW WHERE YOU STAND. These lab grade test kits MADE IN USA let you know where you stand when it comes to detection; therefore, no second guessing
- IT IS AFFORDABLE AND RELIABLE way to know if one is clean before taking official tests at work, school or any other institution
- Used by national rehabilitation facilities, home office drug testing, workplace, educational institutions, pain management, family practice, hospitals, drug courts, law enforcement, staff agencies
- Expiration date for the (5 PACK only) is typically early to middle 2025 at this time for these at home drug test kits.
- This 12 panel cup detects the following list of 12 substances. Each test panel abbreviation is followed by its specific cut-off level threshold number in ng/mL: AMP1000, BAR300, BUP10, BZO300, COC300, MDMA500, MET1000, MOP300/OPI300, MTD300, OXY100, PCP25, THC50
- IMPORTANT: Wait 5 minutes before reading results. Some T-lines may appear instantly & some may take up to 5 minutes to react fully with the sample specimen
- (CLIA Waived) Used by doctors, hospitals, national rehabilitation facilities, home office testing, workplace, educational institutions, pain management, family practice, probation courts, law enforcement, staffing agencies
- ACCURATE: Most widely used and trusted 10 Panel Screening urine drug test. More than 99% accurate in detecting specific drugs according to the designated cut-off levels ; Tests for 10 popular Drugs metabolites in human urine: Marijuana (THC) commonly known as Weed, Pot, Dope, Cocaine (COC),Opiate (OPI 2000),Amphetamine (AMP), Barbiturates (BAR), Benzodiazepines (BZO), Methylenedioxymethamphetamine (MDMA), Methamphetamine (MET),Methadone (MTD), Phencyclidine (PCP) metabolites.
- EASY AND CLEAR: Just remove the cap and dip the test into urine for only 10 seconds; Read the result in 5 minutes, not later; Clear and bold line appears quickly. It is negative if 2 lines appear and is positive if only control line appears. The negative result as quick as 1 minute. NOTE: A very faint test line still means a negative result
- CLIA Waived/510(k) Cleared for Home Use (OTC Use).
- Cutoff level: THC - 50 ng/mL; OPI2000 - 2000 ng/mL; COC - 300 ng/mL; AMP - 1000 ng/mL; BAR-300 ng/mL;BZO - 300 ng/mL; MDMA/Ecstasy-500 ng/mL; MET-1000 ng/mL; MTD-300 ng/mL; PCP-25 ng/mL
- SATISFACTORY EXPERIENCE: Feel free to reach out to us with any questions. Refund or returns are acceptable by brand owner,who is dedicated to be the best home use tests provider.
- HIGHLY SENSITIVE THC DRUG TEST KIT. Detects THC metabolites in urine after consumption of any products containing THC up to 35+ days: marijuana, cannabis edibles, THC vape juice, delta 8 / 9, and other products.
- EASY TO USE AT-HOME DRUG TEST. It takes only 5 minutes to get the results. The "Test" and "Control" lines are clearly visible and easy to read. 15 individually sealed THC test strips with user-friendly instructions for use.
- WALK YOUR WAY THROUGH THE DETOX PROCESS with the THC (marijuana) test kit. Regularly perform a THC urine test to understand where you are in relation to the officially recognized THC detection threshold.
- THE AT-HOME MARIJUANA DRUG TEST KIT COMPLIES WITH ALL THE APPLICABLE REGULATIONS. The THC test kit is 510(k) cleared for OTC use and CLIA Waived. At-home drugtest uses the same detection method as lab screening weed drug test.
- WE STAND BEHIND OUR PRODUCTS. We are confident about our urine drug test's performance, however, if It does not meet your expectations, we will reimburse you in full for your purchase.
- Quick, accurate detection of coke, meth, heroin and MDMA.
- Run a test and get results in less than 2 minutes
- Built-in, removable swabs for safer sampling
- Easy-to-follow, step-by-step instructions provided for best results
- THIS IS NOT A URINE TEST. THIS IS A SUBSTANCE TEST.
- This drug test for 10 specific drugs: 1. Amphetamine (AMP) 1000 ng/ml 2. Barbiturates (BAR) 200 ng/ml 3. Benzodiazepines (BZO) 300ng/ml 4. Cocaine (COC) 300 ng/ml, 5. Methadone (MTD) 300 ng/ml
- 6. Morphine/Opiates (OPI) 2000 ng/ml 7. Methamphetamine (Mamp) 1000 ng/ml 8. Marijuana (THC) 50 ng/ml 9. PCP 25 ng/ml 10. Ecstasy (MDMA) 500 ng/ml
- FDA 510(K) cleared * 99% Accuracy Levels * Easy, 2-step Procedure
- Meets SAMHSA standards for substance abuse screening
- Ideal for: * Home drug testing * Work place testing * School/college/university drug testing * Criminal justice * Law enforcement drug testing * Substance abuse rehabilitation centers
- RELIABLE: CLIA Waived for home or over-the-counter (OTC) use. Same technology used as Lab screening test. Results are accepted in most professional and clinical settings.
- COMPREHENSIVE: This test can detect 18 different substances at the same time: AMP, BAR, BUP, BZO, COC, mAMP, MDMA, MOP, MTD, OXY, PCP, TCA, ETG, FTY, TRA, K2,TRA100
- ACCURATE: More than 99% accurate; lab recommended cutoff level: AMP - 1000 ng/mL; BAR - 300 ng/mL; BUP - 10 ng/mL; BZO - 300 ng/mL,COC - 300 ng/mL; mAMP/MET - 1000 ng/mL; MDMA - 500 ng/mL; MOP/OPI - 300 ng/mL; MTD - 300 ng/mL; OXY- 100 ng/mL; PCP- 25 ng/mL; TCA - 1000 ng/mL;THC - 50 ng/mL; ETG - 500ng/mL; FTY - 20 ng/mL ; TRA - 200 ng/mL; K2 - 50 ng/mL; TRA100- 100ng/mL .
- EASY TO USE: Simply remove cap, collect sample in test cup, wait a FULL 5 minutes and read result; The disposable plastic gloves are INCLUDED if you buy more than 5 cups at once. It is negative if 2 lines appear, and it is positive if only control line apperars. NOTE: A faint test line still means negative, and DO NOT read result AFTER 5 minutes.
- 5 LEVEL DETECTION OF THC Beyond a simple Positive or Negative result, you now know if the consumption of cannabis is ULTRA LOW, LOW, STANDARD, HIGH, EXTRA HIGH.
- ULTRA LOW DETECTION LEVEL OF THC. Detects THC up to 45 days after consumption in any form (marijuana, ganja, weed, dank, pot, zig zag, bud, grass, hydro, hashish). Highly Sensitive.
- SIMPLE TO USE. It takes only 5 minutes to get results: 2 lines appears if clean, 1 control line only appears if not clean.IT IS AFFORDABLE AND RELIABLE way to know if one is free from THC before taking official tests at work, school or any other institution.
- KNOW WHERE YOU STAND. These lab grade test kits MADE IN USA let you know where you stand when it comes to detecting levels of THC; no second guessing.
- CONFIDENTIAL. Take in the privacy of your own home.
- More than 99% accurate in detecting specific drugs according to the designated cut-off levels
- Easy to use-just dip the test into urine and read results, 2 lines appears if clean, 1 control line only appears if not clean;
- 510(K) Cleared for Home Use (OTC Use);
- Minimum and Maximum detection time for each drug show typically how quick and how long the urine drug test can detect this drug in urine sample. The detection time varies greatly depending on the how often and how much of drug use as well as metabolism rate of each person. Please refer to the product instruction for detection window of each drug.
- Same science used as Lab screen test; More tests with lower cost than retailers offer;
- DRUG TEST KIT FOR 7 MOST USED DRUGS IN THE USA: THC (Marijuana, Weed), COC (Cocaine), OPI (Opiates, Heroin), AMP (Amphetamine), MET (Methamphetamine), BZO (Benzos, Benzodiazepine, Valium, Xanax, Serax, Librium), MDMA (Ecstasy).
- EASY TO USE AT-HOME DRUG TEST. It takes only 5 minutes to get the results. The "Test" and "Control" lines are clearly visible and easy to read. 5 individually sealed dip-cards, 5 urine collection containers, and user-friendly instructions for use.
- HIGHLY SENSITIVE WITH ACCURATE RESULTS (UP TO 99.9% ACCURACY). 7-panel drug test with detection levels (ng/ml): THC - 50, COC - 300, OPI - 2000, AMP - 1000, MET -1000, BZO - 300, MDMA - 500.
- THE URINE TEST KIT FOR DRUGS COMPLIES WITH THE REGULATORY REQUIREMENTS. 510(k) cleared for over-the-counter use (OTC) and CLIA waived for professional use. Same detection method used as lab screening drug tests.
- WE STAND BEHIND OUR PRODUCTS. We are confident about our urine drug test kit for all drugs' performance, however, if It does not meet your expectations, we will reimburse you in full for your purchase.
![Prime Screen [5 Pack] 6 Panel Urine Drug Test Kit (THC-Marijuana, BZO-Benzos, MET-Meth, OPI, AMP, COC), WDOA-264](https://m.media-amazon.com/images/I/51EaSeSvRdL.jpg "The 8 Best drug test kits of %currentyear% 42")
- Accurate and Reliable - 510(k) Cleared for Home Use (OTC Use) and professional use. Over 99% accurate in detecting 6 drugs according to the recommended cut-off level: THC-Marijuana-50ng/mL; MET-Meth-1000ng/mL; BZO-Benzos-300ng/mL;OPI-2000ng/mL; AMP-1000ng/mL; COC-300ng/mL.
- Easy and Fast - Dip the test in urine for 10 seconds and read the result in 5 minutes. 2 lines appears if clean; 1 control line only appears if not clean.
- Multi-scenario Usage - Ideal for workplace/ Teens screening at home / Pain Clinics/ Rehab Center / Criminal justice & Law enforcement/ Lab screening test.
- Peace of Mind - Test yourself, your staff or your family member regularly to know when you or they are safe to take official tests at work, school or any other institution.
- 100% Customer Satisfaction Guaranteed - Your satisfaction is our NO.1 priority. With our 100% Customer Satisfaction Policy, we provide hassle-free replacement and step-by-step customer service. Feel free to contact our professional customer service team by sending message via Amazon.com for any concerns or questions you might have. Our dedicated team will try our best to resolve your questions timely.
- Easy-to-use pouch provides industry leading presumptive testing results.
- Handheld field test…no calibration needed
- Sealed system eliminates contamination
- Removable Swab for acquiring sample or particulate
- 3 Step Process…Swab, Crush and View Results
- Built-in temperature strip and 3 adulteration strips to verify if adulterants or dilution agents are added to the urine sample to cause a false result.
- Screen 14 different substances TH. C50ng/mL;CO. C300ng/ml;OP. I2000ng/ml;AM. P1000ng/ml;BZ. O300ng/ml;PC. P25ng/ml;MD.M. A500ng/ml;BA. R300ng/ml;MT. D300ng/ml;OX. Y100ng/ml;TC. A1000ng/ml;ME. T1000ng/ml;PP. X300ng/ml;BU. P10ng/ml.
- CLIA Waived for over the counter (OTC) use. Simply urinate into the test cup and read the result in 5 minutes, not after; Experience result-readiness within the comfort of your home, better preparing you for official tests.
- Swift and Clear Outcome Visibility: When two lines appear, the result is negative; if only the control line is visible, it's positive. A faint test line suggests the concentration near the cutoff level. Remember: Even a faint or thin line signifies a negative result.
- Quality customer support team available in the US. Contact us if you need assistance.
![Prime Screen Multi-Drug Urine Test Cup 14 Panel Kit - Test 14 Drugs Including Marijuana (THC),OPI,AMP, BAR, BUP, BZO, COC, mAMP, MDMA, MTD, OXY, PCP, PPX, TCA - [2 Pack]](https://m.media-amazon.com/images/I/41FUrM2PsmL.jpg "The 8 Best drug test kits of %currentyear% 45")
- RELIABLE: CLIA Waived for home or over-the-counter (OTC) use. Same technology used as Lab screening test. Results are accepted in most professional and clinical settings.
- COMPREHENSIVE: This lab grade test can detect 14 drugs simultaneously: THC,OPI,AMP, BAR, BUP, BZO, COC, mAMP, MDMA, MTD, OXY, PCP, PPX, TCA
- ACCURATE: More than 99% accurate; Cutoff level: AMP - 1000 ng/mL; BAR - 300 ng/mL; BUP - 10 ng/mL; BZO - 300 ng/mL,COC - 300 ng/mL; mAMP/MET - 1000 ng/mL; MDMA - 500 ng/mL; MOP/OPI - 300 ng/mL; MTD - 300 ng/mL; OXY- 100 ng/mL; PCP- 25 ng/mL; PPX - 300 ng/mL;THC - 1000 ng/mL
- EASY TO USE: Simply remove cap, collect urine in test cup, wait a FULL 5 minutes and read result; The disposable plastic gloves are INCLUDED. It is negative if 2 lines appear, and it is positive if only control line apperars. NOTE: A faint test line still means negative, and DO NOT read result AFTER 5 minutes.
- ULTRA LOW DETECTION LEVEL OF THC. Detects THC up to 45 days after consumption in any form (marijuana, ganja, weed, dank, pot, zig zag, bud, grass, hydro, hashish). Highly Sensitive.
- IT IS AFFORDABLE AND RELIABLE way to know if one is free from THC before taking official tests at work, school or any other institution.
- KNOW WHERE YOU STAND. These lab grade test kits MADE IN USA let you know where you stand when it comes to detecting levels of THC; no second guessing.
- CONFIDENTIAL. Take in the privacy of your own home.
How to choose a good drug test kits
Does the idea of finding a fantastic drug test kits make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in drug test kits. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top drug test kits products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top drug test kits on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top drug test kits brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top drug test kits based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the drug test kits were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good drug test kits, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your drug test kits.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting drug test kits for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our drug test kits. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what drug test kits should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on drug test kits.
