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Saliva Drug Tests — A Comprehensive Guide

Nov 13, 2023

Saliva drug tests are a powerful tool in the realm of drug testing, offering a quick and efficient way to detect the presence of drugs in an individual's saliva. In this comprehensive guide, we will explore how saliva testing works, its various applications, the factors influencing detection windows, and what employers should know when implementing saliva drug testing programs in the workplace.

What is Saliva Drug Testing?

Saliva drug tests, also known as oral fluid drug tests or mouth swab tests, are an effective method used to detect the presence of drugs in an individual's saliva. The detection window when using a saliva test for drugs compared to other testing methods like urine or hair tests makes them particularly effective at detecting recent drug use. This way, saliva drug tests can provide real-time insights into the individual's recent drug use.


When undertaking saliva testing for drugs, a swab is taken from the individual's mouth, typically placed between the lower cheek and gum or under the tongue, allowing the swab to sufficiently absorb the saliva and provide the most accurate test result. 


This drug test, in using saliva as the testing medium, is designed to be non-invasive and efficient, taking only a few minutes to collect the necessary sample for drug testing. When used and handled correctly, saliva drug tests can provide an incredibly accurate result.

Oral Testing Detection Window


The detection window for saliva drug tests typically covers a relatively short timeframe compared to other drug testing methods like urine or hair tests. It is important to note that the detection window for saliva drug tests may differ from person to person and can be impacted by multiple factors. Saliva drug tests are generally able to detect drugs in the system from anywhere between 24 hours to three days.

The following factors can influence the length of time drugs remain detectable in a saliva drug test:

  • Type of drug
  • Quantity of drug intake
  • Frequency & duration of use
  • Age of individual
  • Rate of metabolism
  • Physical build & activity

These factors collectively determine the variability in detection windows among individuals, making it essential to consider these variables when interpreting the results of saliva drug tests. While saliva tests excel at detecting recent drug use, they may not provide insights into an individual's drug history beyond this relatively short timeframe.

What Do Saliva Drug Tests Detect?


Saliva drug tests are a valuable tool for detecting the presence of various substances in an individual's system, offering real-time insights into recent drug use. These tests are widely employed in diverse settings, from workplace drug screening to law enforcement and clinical assessments.

As mentioned above, the detection window for saliva drug tests can vary based on the type of drug used. The following lists the types of drugs typically screened for in saliva drug tests and their respective detection windows.

  • Alcohol - around 12 hours
  • Cannabis (THC) - up to 24 hours
  • Cocaine - up to 12 hours
  • Amphetamines - up to 24 hours
  • Opiates - up to 24 hours
  • Benzodiazepines - up to 9 days
  • Phencyclidine (PCP) - up to 7-14 days
  • Oxycodone - up to 2 days

It is important to note that these are general timeframes and can vary based on the specific drug taken and various individual factors.

Saliva Drug Test Applications


Saliva drug tests are used in a variety of settings to test for the use of illicit substances. It is a critical tool employed in various settings such as workplaces, transportation, and healthcare to enhance safety and mitigate risks associated with individuals under the influence. These tests play a pivotal role in ensuring a secure environment in the following key areas:

  • Workplace drug testing
  • Pre-employment Screening
  • Law enforcement
  • Sports organisations
  • Rehabilitation centres & treatment programmes
  • Clinical & medical settings

Workplace Drug Testing

The use of drugs in the workplace is a concern that poses risks to the health and safety of employees and the overall productivity of an organisation. For this reason, various industries such as mining, aviation, and manufacturing have established regulations wherein employers must conduct pre-employment or random drug tests. Explore our page on Pre-employment Drug Testing in Australia for more information about employee rights and the best practices for employers regarding drug testing their employees.




Purchasing Saliva Drug Testing Kits in Australia

As an employer, it is your responsibility to ensure your workplace is one where employees not only thrive but feel safe. Fortunately, our role at AWDTS is to help you take the first step toward a safer and more secure workplace.

Contact us today to learn more about our range of saliva drug testing products, or shop our collection today through our online store. Better yet, explore our range of training courses aimed at educating you on a range of drug and alcohol testing techniques. Together, we can create a safer environment for your employees and customers.

13 Nov, 2023
AWDTS: Your partner in professional pre-employment drug & alcohol testing. Prioritize safety and maintain a substance-free work environment. Find out more.
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