Why Private MD Labs?
90-day money-back guarantee Lab order in minutes Save a trip to the doctor Low prices since 2005 Labs within 2 miles
Naltrexone urine test for monitoring compliance in opioid or alcohol dependence treatment

Naltrexone Urine Test for Treatment Compliance Monitoring

Drug Monitoring, Naltrexone, Quantitative, Urine

  • Confirm naltrexone medication compliance easily
  • Monitor recovery treatment adherence privately
  • Track dosing consistency over time
$505
First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay
  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay

What's this test for?

This test is ideal if you're in a treatment program for alcohol or opioid dependence and need to confirm you're taking naltrexone as prescribed. It's also useful if you're supporting someone else's recovery and want an objective way to check medication compliance. The test measures naltrexone levels in urine to confirm recent use.

What happens after I get my results?

Your results will show up in your account with the naltrexone level and an explanation of what the range means. If the level is lower than expected, it may suggest missed doses, and a simple next step is to review dosing consistency and consider retesting on a regular schedule to track compliance over time. A standard lab report is available to download from your account, and you can use the trends feature to see how your levels change with each test.

Who should consider this test?

Anyone currently prescribed naltrexone for alcohol or opioid dependence who needs to verify they're taking it consistently should consider this test. It's also a good fit for treatment programs, sober living facilities, or family members who want an objective, private way to confirm compliance. This test gives a clear, measurable answer instead of relying on self-reporting.

How can I naturally support recovery while on naltrexone?
While naltrexone itself requires consistent dosing to work, you can support your recovery with steady sleep, regular meals, and staying hydrated to help your body process medication consistently. Reducing stress through light exercise, journaling, or support groups can also help you stick to your treatment routine. Avoiding alcohol and opioids entirely is essential since naltrexone blocks their effects but doesn't eliminate cravings on its own.
When will I get my results?
Results are typically ready within about 7 days of your sample being tested at the lab. You'll get a notification as soon as your report is available in your account. If you need results sooner for a specific program requirement, plan your test date accordingly.
What symptoms indicate I may need this test?
If you're supposed to be taking naltrexone but notice cravings returning, feeling the effects of alcohol or opioids again, or missing doses due to a busy schedule, this test can confirm whether the medication is actually in your system. It's also useful even without symptoms, simply as a routine check-in for treatment programs. Consistent use is key to naltrexone working properly, so any doubt about adherence is a good reason to test.
What does a low naltrexone level mean?
A low or undetectable level usually means the medication wasn't taken recently, was taken at a lower dose than expected, or was taken longer ago than the test window covers. This is worth addressing quickly, since gaps in naltrexone use can leave you vulnerable to alcohol or opioid effects and cravings. Reviewing your dosing schedule and setting reminders can help close these gaps going forward.
What causes low naltrexone levels?
The most common causes are missed or skipped doses, taking a smaller dose than prescribed, or testing too long after the last dose was taken. Individual differences in how quickly your body processes medication can also play a role. If low levels keep showing up, it may help to simplify your dosing routine or set a fixed time each day to take it.
How often should I retest?
Retesting frequency depends on your treatment program's requirements, but many people test every few weeks to a month to confirm ongoing compliance. If you've recently changed your dose or had a lapse in use, testing sooner can help you get back on track. Regular retesting also helps you build a clear compliance history over time using the trends feature.
What should I do if my results are unexpected?
If your naltrexone level is lower than expected, start by reviewing your dosing schedule and timing to see if doses were missed or delayed. Consider setting daily reminders or pairing your dose with an existing habit, like brushing your teeth, to improve consistency. If cravings or withdrawal-type symptoms show up, that's a sign to prioritize getting back on a steady dosing routine right away.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Naltrexone (Urine) 210 ng/mL
Demo results
Not Detected / Below Expected Within Expected Range
210 ng/mL

What this means

This result shows naltrexone was detected at a level lower than expected for consistent daily use. It may suggest a missed dose, a delayed dose, or testing near the end of the medication's window in your system. Consistent dosing is important for naltrexone to effectively block alcohol and opioid effects.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Find a lab near you

Search Quest Diagnostics and LabCorp locations available through Private MD Labs.

Find a lab

Naltrexone Urine Test for Treatment Compliance Monitoring

  • Confirm naltrexone medication compliance easily
  • Monitor recovery treatment adherence privately
  • Track dosing consistency over time
$505
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
Ask Me Anything

Your 24/7 Personal Lab Guide

Hi. Tell me what you want to check. I'll find the right blood test for you.

Just now
For informational purposes only. Not medical advice.