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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, which may be used to monitor recent drug use or compliance with medication regimens.

Quick summary

["This test helps track exposure to barbiturate medications or illicit substances in your saliva."]

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

Key facts at a glance

LOINC
72629-9
Short code
Secobarbital Sal Ql Cfm
Synonyms
Secobarbital Sal Ql Cfm
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

What Is Being Tested?

Barbiturates are a class of central nervous system depressants that can be prescribed for sleep disorders or used illicitly. This test detects specific chemical compounds from barbiturates in your saliva, which can linger for several days after exposure.

Why Might You Need This Test?

Your healthcare provider may order this test if you are under medical supervision for barbiturate treatment, if you have concerns about recent drug use, or as part of a broader substance screening process.

How Is the Test Performed?

A small saliva sample is collected using a provided swab or dropper. You simply spit into the container as directed. The sample is then analyzed in a lab to detect barbiturate compounds.

What Do Results Mean?

Positive results indicate the presence of barbiturates in your saliva, which may suggest recent use. Negative results mean no detectable levels were found. Results are qualitative (present or absent) and not tied to specific concentrations.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Barbiturates can impair judgment, coordination, and breathing at higher doses. Monitoring through saliva testing helps ensure safe dosing, detect misuse, or assess compliance with treatment plans.

Short name

Barbiturate Screen (Saliva)

Frequently asked questions

How long do barbiturates stay in saliva?
Barbiturates can remain detectable in saliva for several days after ingestion, depending on the specific compound and your metabolism. This window allows for monitoring recent exposure.
What are common reasons for this test?
Common reasons include monitoring adherence to barbiturate medications, detecting illicit use, or evaluating substance abuse in clinical or legal settings.
Can false positives occur?
False positives are rare but possible, especially if other substances with similar chemical structures are present. Your healthcare provider will discuss results and next steps based on clinical context.
  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