Marijuana is a one type of drug. Seeds, leaves or flowers, or parts of the Cannabis sativa are taken or smoked by any person then he or she may feel changes in perception. Difficulties with coordination, difficulties in making decisions apart from perception changes can be observed. User may have panic attacks.

The major chemical delta-9-tetrahydrocannabinol, or THC can be responsible for all the changes in perception. Marijuana is classified by the Unites States as Schedule 1 drug under the Controlled Substance Act. They considered marijuana drug as unsafe and ineffective for medical use.

Generally, drug test is conducted to know the presence of the drug in body. Saliva marijuana test is one type of method which is conducted to detect whether a person has taken or smoked marijuana drug. Mainly, this drug testing looks for THC while testing. Saliva drug test is the one of the methods used to detect the THC substances in body. The recent marijuana drug use can be found out in this test. It is difficult to adulterate in this drug test, suppose when the sample is collected from mouth directly then it is difficult to substitute the saliva of other person.

There are many tests to know the usage of marijuana drug such as urine test, blood test, hair test apart from saliva drug test. They take more time to give the results than saliva drug test. This test provides results quickly and accurately. Among them, urine test is most used one and it is also less expensive when compared to blood drug test and hair drug test.

This saliva marijuana test is more convenient at work place and post accident than other tests to know the recent marijuana drug use.