Whether positive or negative, a self-test result is a starting point for a conversation about your symptoms with your doctor. Self-testing provides a preliminary screen of physiological biomarker levels, but is not a diagnosis. Always speak with your doctor if you are concerned about your symptoms or anxious about your health.
SELFCheck
Multi-Drug Test
Multi-Drug Test
Buy 1 Get 1 half price
Buy 1 Get 1 half price
Order 2 tests and get the lower priced test for 1/2 price
UK delivery £3.95 (FREE for orders over £30)
UK delivery £3.95 (FREE for orders over £30)
Order before 2pm Monday to Friday for same day dispatch (except holidays). All orders dispatched with Royal Mail 24*
Plain packaging
Plain packaging
Discreet plain packaging on all orders.
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This comprehensive 6-panel urine test kit allows you to quickly and safely screen for the presence of six common drugs at home in 5 minutes.
Screens for 6 Common Drugs
Detects Cannabis (THC), Cocaine (COC), Opiates (OPI), Amphetamines (AMP), Methamphetamines (MET, including Ecstasy), and Benzodiazepines (BZO).
Fast Results in 5 Minutes
Get clear positive or negative indications for each drug group quickly.
Simple & Easy to Use
A single-step urine test suitable for home, workplace, or personal use – no additional equipment needed.
Discrete UK Delivery
Delivered in plain packaging for your privacy. Order before 2pm Monday to Friday for same day dispatch. FREE delivery on UK orders over £30.
Drug screening test basics
The SELFCHECK kit is designed to provide clear, individual results for six distinct drug categories frequently tested for in the UK:
Cannabis (THC)
Detects metabolites of Marijuana and Hashish. Commonly detectable for 1-7 days in occasional users, but can be much longer (weeks to a month or more) in chronic or heavy users due to storage in fat cells.
Cocaine (COC)
Screens for Cocaine and its primary metabolite, Benzoylecgonine. Typically detectable for 2-4 days after use.
Opiates (OPI)
Identifies common opiates such as Heroin, Morphine, and Codeine. Generally detectable for 2-5 days after use.
Amphetamines (AMP)
Detects Amphetamine-type stimulants (e.g., Speed). Usually detectable for 2-4 days after use.
Methamphetamines (MET)
Includes Methamphetamine and related substances like MDMA (Ecstasy). Typically detectable for 2-5 days after use.
Benzodiazepines (BZO)
Screens for a class of prescription drugs often misused, such as Diazepam, Lorazepam, and Alprazolam. Detection times vary significantly depending on the specific Benzodiazepine and frequency of use, ranging from a few days up to several weeks.
Interpreting Your Multi-Drug Test Results
Each drug has a specific cutoff level (concentration threshold) that must be met or exceeded for a presumptive positive result. Our test uses standard screening cutoff levels aligned with common practice.
A detailed instruction leaflet in plain English and easy to follow illustrations is included with each kit to guide you through the process.
Each drug on the panel has its own result window with a Control line (C) and a Test line (T).
Negative Result
Two coloured lines appear: one in the Control zone (C) and one in the Test zone (T). The intensity of the Test line (T) may vary; any visible line in the Test zone, no matter how faint, indicates a negative result for that specific drug. This means the drug was not detected above the test's cutoff level.
Positive Result
One coloured line appears only in the Control zone (C). No coloured line appears in the Test zone (T). This is a presumptive positive result for that specific drug, indicating the drug was detected at or above the test's cutoff level.
Interpret each individual drug panel separately to understand the result for each substance tested.
Important considerations and follow-up
Home drug test kits provide a valuable initial screening, but it's important to remember:
Confirmation is recommended
A presumptive positive result from a home screening test should ideally be confirmed by a laboratory using methods like GC/MS (Gas Chromatography/Mass Spectrometry) for legal or significant personal decisions.
Detection windows vary
The times listed are estimates. Many factors influence how long drugs stay in a person's system.
External factors,
Certain medications or substances can potentially interfere with test results.
If you obtain a positive result with a screening test or have concerns about drug use, we strongly recommend seeking professional advice. For parents, this might involve speaking to a healthcare professional or a support organisation. For employers, follow your established drug and alcohol policy and consider laboratory confirmation.
What SELFCHECK users say
What SELFCHECK users say
We invited SELFCHECK customers to tell us about their experience with their SELFCHECK test.
- 4/5 overall rating
- 9/10 easy to read instructions
- 4/5 thought that using the test was worthwhile
"All appeared good and instructions easy to follow"
"Everything was easy to follow"
"Very satisfied with your service"
"Simple enough, just had to check the instructions a couple of times"
The survey was completed in the Summer of 2024 of 118 random respondents who purchased one of our SELFCHECK tests. All customers are provided with contact information for our customer care team with their test, if they need any help to use their SELFCHECK test, or help to interpret their results.
For further information on how the scores were calculated please contact SELFCHECK.
Information for doctors
Information for doctors
SELFCHECK has been a leading British brand of health checks for over 15 years.
At SELFCHECK, we're working hard to make self-testing better for your patients. All our medical tests are assembled at a quality assured (ISO13485) medical device facility in France, and registered with MHRA according to UK medical device regulations IVDD/IVDR.
We are working closely with the NHS and academia to develop new diagnostics at our own UK R&D labs, particularly in the areas of sepsis, and the monitoring of chronic diseases.
Our professional customer care team provide help for your patients, so they can fully understand how our tests work, and how they should be used.

Important to know
All SELFCHECK medical tests are CE certified according to UK and EU regulations, and registered with MHRA as self-testing devices.
Our tests are based on the same principles used by hospital labs, and provide reliable, meaningful results, but self-testing is not meant to replace established NHS healthcare pathways. Always consider what a positive or negative result will mean to you before testing, and be aware of the limitations of the test you are using.
If you have symptoms that concern you, or are anxious about your health, always speak with your pharmacist or doctor.