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Barbiturate (Drug Screening) in Saliva

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of barbiturate drugs in your saliva. Barbiturates are a class of sedative-hypnotic medications that can be used to treat insomnia or seizures, but misuse can lead to serious health risks.

Quick summary

["This test helps monitor drug use or assess exposure to barbiturates in saliva."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
72452-6
Short code
Secobarbital Sal Cfm-mCnc
Synonyms
Secobarbital Sal Cfm-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you have concerns about barbiturate use, such as suspected misuse, exposure to toxins, or compliance with a medication regimen. It can also be part of a broader drug screening process, especially in settings like workplace testing or legal evaluations.

What to Expect Before the Test

No special preparation is needed for this test. You will provide a saliva sample, which is collected by spitting into a container. The sample is then analyzed in a laboratory.

How the Test Works

Saliva contains traces of drugs metabolized by your body. This test detects these traces using a highly sensitive method, likely immunoassay or chromatography, to identify barbiturates such as phenobarbital or secobarbital.

What the Results Mean

A positive result indicates the presence of barbiturates in your saliva, which may suggest recent use or exposure. A negative result means no detectable levels of these drugs were found. Results are qualitative (present or absent) rather than quantitative, so they do not provide exact amounts.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Barbiturate Screen (Saliva)

Frequently asked questions

What Does a Positive Result Indicate?
A positive result may signal recent barbiturate use, which could be linked to medical conditions requiring sedation, accidental exposure, or intentional misuse. It’s important to discuss the results with your healthcare provider to understand the context and next steps.
What Does a Negative Result Indicate?
A negative result means no detectable barbiturates were found in your saliva at the time of testing. However, this does not guarantee that you have never used barbiturates or that they were not present at very low levels.
How Often Should This Test Be Done?
The frequency of this test depends on your medical needs. If you are under a medication regimen involving barbiturates, your provider may schedule follow-up tests to monitor compliance or levels. In other cases, like workplace or legal testing, the schedule is determined by specific guidelines or requirements.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy