Frequently Asked Questions

Drug Test London is a brand of AIS Health Ltd (company number 09835294, registered in England and Wales). We've provided private, confidential drug and alcohol testing since 2015 for individuals, employers and organisations. Samples are analysed by The Doctors Laboratory, which is UKAS accredited, and results are reviewed by a doctor before they're released.

Email enquiry@drugtest.london or call 020 7871 3015, Monday to Friday, 9am to 5pm. We can't give results over the phone.

Laboratory tests are collected at The Doctors Laboratory Patient Reception, 76 Wimpole Street, London W1G 9RT. The nearest tube stations are Oxford Circus and Bond Street, a 5 to 10 minute walk away. Our registered office at 45 Fitzroy Street is not a testing location, so please don't attend or post samples there.

No. Everyone attends Patient Reception at 76 Wimpole Street, or uses one of our home kits.

Start with what you're being asked for. For general or personal screening, the Urine Drug Test (seven drug groups) is the usual choice. For drugs and recent alcohol together, choose the Urine Drug and Alcohol Test, or the 13-Substance Test for a wider panel. If an employer, court, solicitor or visa authority needs documented sample handling, choose the Chain-of-Custody Drug Test. For drinking over recent weeks, choose CDT (about 2 to 3 weeks) or PEth (about 3 to 4 weeks). Always check the exact requirements with the organisation asking for the test before you order.

Both are laboratory tests. A chain-of-custody test also documents every step of collection, handling and transfer to the laboratory, so the result can be relied on formally, for example for court, legal, workplace or visa purposes. It needs a weekday appointment. A standard test is walk-in and is fine for personal or many workplace needs.

Seven drug groups: amphetamines (including methamphetamine and MDMA), benzodiazepines, barbiturates, cannabinoids, cocaine, methadone and opiates. Each has a laboratory screening cut-off, listed on the product page.

Yes. We offer single-drug urine tests for cannabis, cocaine, opiates, ketamine and LSD, and a blood test for amphetamines. Ketamine and LSD aren't on standard panels, so order the specific test if you need them. If you need a named substance that isn't listed, email us before ordering.

We don't currently sell hair or saliva tests online. Email enquiry@drugtest.london and we'll let you know what we can arrange.

It depends on the time period you need to cover. The urine alcohol test shows very recent drinking (around 24 hours) and the blood alcohol test shows the level at the time of collection. Urine EtG covers roughly the last 24 to 72 hours. CDT reflects heavy drinking over about 2 to 3 weeks, and PEth reflects drinking over about 3 to 4 weeks. The Alcohol Profile combines blood alcohol, liver function, MCV, CDT and PEth from one sample.

Our private CDT test shows your current CDT level, which some people like to know before an official DVLA medical. It doesn't replace the DVLA's own medical assessment.

Yes. Cotinine tests in urine (around 2 to 4 days) or blood (around 10 days) show recent nicotine exposure. They can't tell which nicotine source was used, so vaping, patches and smoking all show up.

1) Choose your test and pay online by card. 2) Enter the full name and date of birth of the person being tested, not the buyer. The laboratory needs these to identify the sample. 3) You'll get an automatic order confirmation. 4) We process orders Monday to Friday, 9am to 5pm, usually within an hour. 5) We then send you an email and text to confirm you can attend. 6) Attend Patient Reception with your original photo ID.

No. Please order and pay online first, then wait for our confirmation email and text. Patient Reception won't be expecting you before then and can't take payment.

Not for standard laboratory tests. They're walk-in after you've received our confirmation. Chain-of-custody tests need an appointment, Monday to Friday between 9am and 3pm, at 30-minute intervals.

For walk-in tests: Monday to Friday 7am to 7pm, Saturday 7am to 1pm, and Sunday 8am to 11am. Chain-of-custody appointments are Monday to Friday, 9am to 3pm only.

Yes, for all laboratory tests except chain-of-custody. Orders placed during office hours (Monday to Friday, 9am to 5pm) are usually processed within an hour, and you can attend once you have our confirmation. Orders placed outside office hours are processed when the office next opens.

An original, valid passport or driving licence. Copies and photos on a phone aren't accepted. Results are often used by courts and other organisations, so identity must be confirmed at collection.

No. All tests must be ordered and paid for online before you attend.

Yes. Enter the details of the person being tested. If you're ordering several tests, add one test per person and enter each person's details separately.

Yes. On Sundays, the person being tested must be 14 or over.

No. You can leave as soon as you've given your sample.

Yes. Add one test per employee, choose employee testing in the basket, then enter your company details and each employee's details. You can book up to ten employees online. For larger groups, contact us for a quote first.

The authorised recipient you name when ordering. Results go to anyone else only with appropriate authorisation.

Yes. Employers are responsible for having a lawful, fair testing policy and getting employees' consent. You'll confirm this when you order.

Yes: a Home Urine Drug Test (six drug groups), a Home CDT Blood Test and a Home PEth Blood Test (both finger-prick). They're laboratory tests, not instant tests. You collect the sample at home and post it back in the prepaid envelope.

No. Nobody verifies who gave the sample, so home kits are for personal use only. Choose a supervised test at Patient Reception, or a chain-of-custody test, when verified collection is needed.

To UK addresses by Royal Mail Tracked 24, in discreet packaging. Delivery dates are estimates. Delivery charges and any alternatives are shown at checkout.

Your sample and the completed Pathology Request Form in the prepaid envelope. Without the form the laboratory can't process the test. Post your sample promptly after collecting it, and never send it to our registered office.

Securely by email, after a doctor has reviewed them. We can't give results by phone. They go only to you, or to the authorised recipient named when ordering, unless you ask us to share them.

Each test page shows its own turnaround. As a guide, negative urine drug screens usually take 1 to 2 working days, and blood alcohol, urine alcohol, liver and full blood count tests usually take 1 working day. CDT and the blood drug panel take about 5 working days, and PEth and the Alcohol Profile 5 to 7. EtG takes about 7 working days, LSD about 6, and ketamine 7 to 10. Times start after your sample is collected (or reaches the laboratory for home kits) and are estimates, not guarantees.

The laboratory automatically runs a confirmation test. This can add around five working days.

It varies from person to person, depending on how much was used, how often, metabolism and hydration. As a rough guide in urine, amphetamines and cocaine are often detectable for 1 to 3 days, most other drug groups for 1 to 4 days, and cannabis for 1 to 30 days. Blood usually shows more recent use. Our detection-times guide has more detail. We can't tell you whether a particular person will test positive or negative.

Your report is reviewed by a doctor and includes an explanation where appropriate. If you have health concerns about your result, please speak to your GP.

Check Your Drink (CYD) strips are single-use test strips for checking a drink for some common spiking substances, including GHB, ketamine, cocaine, scopolamine, amphetamine and MDMA. Each matchbook holds eight strips, results show as a colour change within seconds, and UK delivery is free.

Not necessarily. CYD can't detect every spiking substance. If you're worried about your drink, don't drink it.

Get help straight away. Tell someone you trust and alert venue staff. Call 999 if you feel very unwell or unsafe. Don't rely on a test strip instead of medical help.

Yes. Packs of 2, 5, 10, 25, 50 and 100 matchbooks are available, with discounts of up to 15%.

Yes, before any work has begun you'll normally get a full refund. Email enquiry@drugtest.london with your order number as soon as possible. Once collection, paperwork or laboratory work has started, reasonable costs for completed work may be deducted. Your statutory rights aren't affected.

Contact us before you attend or post a sample. We can usually move your payment to the right test and adjust any price difference. Changes may not be possible once processing has started.

Not automatically. Please confirm what the requesting organisation needs before ordering. Refunds also don't depend on whether a result is positive or negative.

Unopened kits can usually be cancelled within 14 days of delivery, and returned within 14 days of telling us. Opened collection kits can't be returned for hygiene reasons. Faulty, damaged or wrong kits will be replaced or refunded.