Substance Abuse»Drug»Most Popular»Test Kits by Drugs»Marijuana

SalivaConfirm Oral Fluid Drug Test Kit - 5 Drug Panel
For forensic use only. In drug analysis, oral fluid drug screening has certain advantages over the screening of o ... more details

iScreen™ OFD 6 Panel Saliva Drug Test (COC / THC / OPI / mAMP / AMP / PCP)
For forensic use only. The iScreen OFD Saliva Drug Test Kit can test for Cocaine, THC, Opiates, mAMP, Amphetamine ... more details

iCup® 3 Panel Urine Drug Test (COC/THC/OPI)
This i Cup Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and m ... more details

Multi Drug 2 Panel Urine Dipstrip Test (COC/THC)
Multi Drug 2 Panel Urine Dipstrip Test (COC/THC) 1 For your convenient and safe use of our test kits, please consider to ... more details

Multi Drug 2 Panel Urine Dipstrip Test (mAMP/THC)
Multi Drug 2 Panel Urine Dipstrip Test (mAMP/THC) 1 For your convenient and safe use of our test kits, please consider t ... more details

Multi Drug 3 Panel Urine Dipstrip Test (COC/mAMP/THC)
Multi Drug 3 Panel Urine Dipstrip Test (COC/mAMP/THC) 1 For your convenient and safe use of our test kits, please consid ... more details

Multi Drug 3 Panel Urine Dipstrip Test (COC/THC/OPI)
Multi Drug 3 Panel Urine Dipstrip Test (COC/THC/OPI) 1 For your convenient and safe use of our test kits, please conside ... more details

Multi Drug 4 Panel Urine Dipstrip Test (COC/mAMP/THC/OPI)
Multi Drug 4 Panel Urine Dipstrip Test (COC/mAMP/THC/OPI) 1 For your convenient and safe use of our test kits, please co ... more details

Multi Drug 5 Panel Urine Dipstrip Test ( COC/AMP/mAMP/THC/MOP)
Multi Drug 5 Panel Urine Dipstrip Test ( COC/AMP/mAMP/THC/MOP) 1 For your convenient and safe use of our test kits, plea ... more details

Multi Drug 5 Panel Urine Dipstrip Test (COC/AMP/mAMP/THC/OPI)
Multi Drug 5 Panel Urine Dipstrip Test (COC/AMP/mAMP/THC/OPI) 1 For your convenient and safe use of our test kits, pleas ... more details

Multi Drug 5 Panel Urine Dipstrip Test (COC/mAMP/THC/OPI/MDMA)
Multi Drug 5 Panel Urine Dipstrip Test (COC/mAMP/THC/OPI/MDMA) 1 For your convenient and safe use of our test kits, plea ... more details

Marijuana (THC) Dip-strip Urine Drug Test
Our Marijuana THC Dipstrip Urine Test is a great one step test for quick detection of opiates. In 5 minutes you can obta ... more details

HairConfirm Regular Hair Follicle Drug Testing Kit
Hair Follicle Testing is one of the most trusted methods of drug testing today and is used by law enforcement officials ... more details

HairConfirm Express Hair Follicle Drug Testing Kit
Fastest Results in Hair Drug Testing- Only 2 business days , Hair Follicle Testing is one of the most trusted methods o ... more details

HairConfirm + Prescription Drugs - Hair Follicle 12 Panel Drug Testing Kit
Hair Follicle Testing is one of the most trusted methods of drug testing today and is used by law enforcement officials ... more details

HairConfirm Business - Hair Follicle Workplace Drug Testing Kit
HairConfirm® Business , the on-site hair drug testing solution, provides a 90-day drug use history and enables empl ... more details

iCup 10 A.D. Panel Urine Drug Test (COC/THC/OPI/AMP/mAMP/PCP/BZO/BAR/ MTD/TCA)
New 10 Panel with Adulteration: This is a great integrated urine drug testing kit with a unique panel for employers, cl ... more details

iCup® A.D. 5 Panel Urine Drug Test (COC/THC/OPI/AMP/mAMP)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iCup® A.D. 5 Panel Urine Drug Test (COC/THC/OPI/AMP /PCP)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

Multi Drug 6 Panel Urine Test (COC, AMP, mAMP, THC, OPI, PCP)
Instant Multi Drug Tests - 6 Drug Urine Screening Test Kit. *Easy-to-use *Fast, accurate results *FDA Cleared *Results i ... more details

iScreen™ 2 Panel Urine Drug Test Kit (COC/THC)
Our iScreen Premium Complete 2 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 3 Panel Urine Drug Test Kit (COC/THC/mAMP)
Our iScreen Premium Complete 3 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/mAMP/PCP)
Our iScreen Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/mAMP/BZO)
Our iScreen Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 8 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/mAMP/PCP/BZO/BAR)
Our iScreen Premium Complete 8 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

6 Panel Integrated Cup (COC, THC, OPI, mAMP, MDMA, OXY)
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

6 Panel Integrated Cup (COC, THC, OPI, AMP, mAMP, BZO) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

6 Panel Integrated Cup (COC, THC, OPI, AMP, mAMP, PCP) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

iCassette™ Marijuana (THC) Urine Drug Test Kit
The iCassette Premium Complete THC Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy enough ... more details

Multi Drug 5 Panel Urine Dipstrip Test (COC/AMP/mAMP/THC/OPI) w/ Adulteration Strip
Multi Drug 5 Panel Urine Dipstrip Test (COC/AMP/mAMP/THC/OPI) w/ Adulteration Strip (Oxidants/PCC, Specific Gravity, PH, ... more details

iScreen™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/mAMP)
Our iScreen Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

10 Panel Cassette Urine Drug Test (COC, THC, OPI, AMP, mAMP, PCP, BZO, BAR, MTD, OXY)
The Premium Complete Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy enough for the averag ... more details

iCup® 10 Panel Urine Drug Test (mAMP/COC/THC/AMP/OPI/OXY/PPX/BZO/ BAR/MDMA)
This i Cup Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and money. ... more details

E-Z Split Key A.D. Multi Drug Testing Kit - 5 Drugs
The E-Z Split Key A.D. Multi Drug Testing Kit can detect five different drug types at once. This drug testing kit is in ... more details

iScreen™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/PCP)
Our iScreen Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

Cassette 2 Panel Urine Test (THC / MET)
Our Multi Drug Cassette 2 Panel Urine Test Kit is fast, convenient and easy to use. Just use the dropper to place a few ... more details

12 Panel Dip Strip Urine Drug Test (COC, AMP, mAMP, THC, MTD, MDMA, OPI, OXY, PPX, PCP, BAR, BZO)
Increased illegal drug abuse by teenagers and adults remains a growing concern in the United States today. This 12 Pane ... more details

iScreen 9 Panel Urine Drug Test (COC, THC, MOR, AMP, mAMP, BZO, MTD, OXY, PPX)
Our iScreen Premium Complete 9 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iCup® A.D. 6 Panel Urine Drug Test (COC/THC/OPI/mAMP/AMP/PCP) - CLIA Waived Test
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iCup® A.D. 8 Panel Urine Drug Test (COC/THC/OPI/AMP/mAMP/PCP/BZO/BAR)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, s ... more details

iCup® A.D. 6 Panel Urine Drug Test (COC/THC/OPI/OXY/AMP300/MDMA)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iScreen™ Marijuana (THC) Urine Drug Test Kit
Our iScreen Premium Complete THC Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclu ... more details

Multi Drug 12 Panel Urine Test Card (COC, AMP, mAMP, THC, MTD, MDMA, OPI, OXY, PPX, PCP, BAR, BZO)
This Test Card is specifically designed for the construction industry. TestCountry is proud to offer the only one rapid ... more details

iScreen™ OFD 5 Panel Saliva Drug Test (COC / THC / OPI / mAMP / AMP)
For forensic use only. The iScreen OFD Saliva Drug Test Kit can test for Cocaine, THC, Opiates, mAMP and Amphetam ... more details

5 Panel Integrated E-Z Split II Key Cup (COC/AMP/mAMP/THC/OPI)
The Integrated EZ Split Key Drug test Kits are simple to administer and results can be read within minutes. This kits ar ... more details

6 Panel Dip Strip Urine Drug Test (COC, THC, OPI, AMP, mAMP, OXY)
Our Premium Complete 6 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusive ... more details

3 Panel Integrated Cup (COC, THC, mAMP) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

5 Panel Integrated Cup (COC, THC, OPI, AMP, PCP) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

5 Panel Integrated Cup (COC, THC, OPI, mAMP, PCP) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

10 Panel Dip Strip Drug Test (COC, THC, OPI, AMP, mAMP, PCP, BZO, BAR, MTD, TCA ) w/ Adulteration
Our Premium Complete 10 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusiv ... more details

iScreen 5 Panel Urine Drug Test (COC/THC/MOR/AMP/mAMP)
Our iScreen Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

Occupational Hair Drug Test w/ Extended Opiates
The Occupational Hair Drug Test w/extended Opiates is designed for individuals and employers who need a ... more details

iScreen 4 Panel Urine Drug Test (COC, THC, MOR, mAMP500)
Our iScreen Premium Complete 4 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen 6 Panel Drug Test (COC, THC, OPI, AMP, mAMP, BZO ) w/ Adulteration (OX,PCC,SG,PH,NI,GL,CR)
Our iScreen Premium Complete 6 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iCup 7 Panel Urine Drug Test (COC, THC, OPI, AMP, mAMP, PCP, MDMA) - CLIA Waived
This iCup Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and money. D ... more details

iCup 5 Panel Urine Drug Test (COC, THC, OPI, mAMP, PCP) w/ adulteration (OX,SG,PH) - CLIA Waived
This iCup Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and money. ... more details

iCup 5 Panel Urine Drug Test (COC, THC, OPI, AMP, PCP) w/ Adulteration (OX,SG,PH,NI,GL,CR)
This iCup Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and money. D ... more details

5 Panel Integrated E-Z Split Key Cup (COC/AMP/mAMP/THC/OPI) - CLIA Waived
The Integrated EZ Split Key Drug test Kits are simple to administer and results can be read within minutes. This kits ar ... more details

iCassette™ 2 Panel Urine Drug Test Kit (COC/THC)
The iCassette Premium Complete Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy enough for ... more details

iCassette™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/mAMP)
The iCassette Premium Complete 5 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

iCassette™ 3 Panel Urine Drug Test Kit (COC/THC/mAMP)
The iCassette Premium Complete 3 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

iCup® A.D. 5 Panel Urine Drug Test (COC/THC/OPI/mAMP/PCP)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iScreen™ 9 Panel Urine Drug Test Kit (COC/THC/OPI/mAMP/AMP/PCP/BZO/BAR/MTD)
Our iScreen Premium Complete 9 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 6 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/mAMP/BZO)
Our iScreen Premium Complete 6 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 6 Panel Urine Drug Test Kit (COC/THC/OPI/mAMP/AMP/PCP)
Our iScreen Premium Complete 6 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iScreen™ 3 Panel Urine Drug Test Kit (COC/THC/OPI)
Our iScreen Premium Complete 3 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

8 Panel Integrated Cup (COC, THC, OPI, AMP, mAMP, PCP, BZO, BAR)
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

11 Panel Multi-Clin Urine Drug Test - CLIA Waived Drug Screen Test
The Premium Complete Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy enough for the averag ... more details

iScreen™ 4 Panel Urine Drug Test Kit (COC/THC/OPI/AMP)
Our iScreen Premium Complete 4 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

Saliva Cassette 6 Panel Drug Test (THC / COC / OPI / mAMP / AMP / BZO)
For forensic use only in USA. Not to be sold for public use. Please see warnings section under additional information. ... more details

Saliva Cassette 6 Panel Drug Test (AMP / mAMP / COC / OPI / THC / PCP)
For forensic use only. The Saliva Multi Drug 6 Panel Screen Test is perfect for detecting drug use on the spot. T ... more details

Oralert 6 Panel Oral Fluids Device (COC, AMP, mAMP, THC, OPI, PCP)
For forensic use only. Instant Multi Drug Tests - 6 Oral Fluid Drug Screening Test Kit *Easy-to-use *Fast, accura ... more details

Multi Drug 4 Panel Urine Cassette Test (mAMP/COC/THC/) (OPI) - CLIA Waived
Multi Drug 4 Panel Urine Cassette Test (mAMP/COC/THC/) (OPI) ... more details

5-Panel Laboratory Hair Drug Test
The Lab-based Hair Drug Testing Kit is designed for pre-employment purposes. With one test you can find out a 90-day dr ... more details

International Hair Drug Testing Kit
Our "International Package" Hair Drug Testing Kit is designed for our international customers who need to conduct hair d ... more details

iCup® 3 Panel Urine Drug Test (COC/THC/mAMP)
This i Cup Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and m ... more details

iCassette™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/mAMP/PCP)
The iCassette Premium Complete 5 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

10 Panel Cassette Urine Drug Test (COC, THC, OPI, AMP, mAMP, PCP, BZO, BAR, MTD, MDMA)
The Premium Complete Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy enough for the averag ... more details

5 Panel Dip Strip Urine Drug Test (COC/THC/OPI/mAMP/MDMA)
Our Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusive ... more details

iCassette™ 5 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/PCP)
The iCassette Premium Complete 5 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

iScreen™ 10 Panel Urine Drug Test Kit (COC/THC/OPI/mAMP/AMP/PCP/BZO/BAR/ MTD/TCA)
Our iScreen Premium Complete 10 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all- ... more details

4 Panel Integrated E-Z Split Key Cup (COC/mAMP/THC/OPI) - CLIA Waived
The Integrated EZ Split Key Drug test Kits are simple to administer and results can be read within minutes. This kits ar ... more details

Integrated E-Z Split II Key Drug Test Cup 10 Panel (COC/AMP/mAMP/THC/OPI/ PCP/BAR/BZO/MTD/MDMA)
The E-Z Split Key10 Panel Multi Drug Test Kit can detect 10 different widely used drug types at once. This drug testing ... more details

iScreen 5 Panel Urine Drug Test (COC/THC/MOP/AMP/PCP)
Our iScreen Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

iCassette™ 10 Panel Urine Drug Test Kit (COC/THC/OPI/AM /PCP/mAMP/BZO/BAR/MTD/TCA)
The iCassette Premium Complete 10 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy en ... more details

iCassette™ 6 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/mAMP/PCP)
The iCassette Premium Complete 6 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

iCup® A.D. 9 Panel Urine Drug Test (COC/THC/OPI/AMP/mAMP/PCP/BZO/BAR/MTD)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iCup® A.D. 6 Panel Urine Drug Test (COC/THC/OPI/mAMP/AMP/BZO)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iCup® A.D. 4 Panel Urine Drug Test (COC/THC/OPI/mAMP)
This i Cup Multi Drug Urine Drug Test Kit with built-in adulteration is perfect for testing for several drugs at once, ... more details

iCassette™ 4 Panel Urine Drug Test (COC/THC/OPI/mAMP)
The iCassette Premium Complete 4 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

6 Panel Dip Strip Urine Drug Test (COC, THC, OPI, AMP, mAMP, MDMA)
Our Premium Complete 6 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusive ... more details

10 Panel Dip Strip Urine Drug Test (COC, THC, MOR, AMP, mAMP, PCP, BZO, BAR, MTD, TCA)
Our Premium Complete 10 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusiv ... more details

4 Panel Integrated E-Z Split Key AD Cup w/Adulteration Strip (COC/MAMP/THC/OPI)
The Integrated EZ Split Key Drug test Kits are simple to administer and results can be read within minutes. This kits a ... more details

5 Panel Integrated Cup (COC, THC, OPI, AMP, PCP) w/ Adulteration (OX, SG, PH) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

5 Panel Integrated Cup (COC, THC, OPI, AMP, PCP) w/ Adulteration (OX,SG,PH,NI,GL,CR) - CLIA Waived
This Integrated Multi Drug Urine Drug Test Kit is perfect for testing for several drugs at once, saving both time and mo ... more details

5 Panel Dip Strip Drug Test (COC/THC/OPI/AMP/mAMP) w/ Adulteration (OX/PCC/SG/PH/NI/GL/CR)
Our Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusive ... more details

iScreen 6 Panel Urine Drug Test (COC, THC, OPI, AMP, BZO, MTD)
Our iScreen Premium Complete 6 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-i ... more details

5 Panel Dip Strip Urine Drug Test (COC/THC/OPI/AMP/BZO)
Our Premium Complete 5 Panel Urine Drug Test Kit is easy to use and provides reliable results. This kit is all-inclusive ... more details

iCassette™ 9 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/PCP/mAMP/BZO/BAR/MTD)
The iCassette Premium Complete 9 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details

iCassette™ 8 Panel Urine Drug Test Kit (COC/THC/OPI/AMP/mAMP/PCP/BZO/BAR)
The iCassette Premium Complete 8 Panel Urine Drug Test Kit takes the guesswork out of drug testing and makes it easy eno ... more details
Marijuana Drug Testing
Marijuana is the most-used illicit drug in the world, according to the United Nations.
It is estimated that millions of people around the world use marijuana on a daily basis as a recreational drug, in religious or spiritual ceremonies or for medicinal purposes.
The psychoactive element that causes people to feel high is tetrahydrocannabinol, commonly referred to as THC. After smoking or consuming marijuana, people typically feel changes in perception and mood, short-term memory impairment, increased heart rate, a dry mouth, increased appetite, lowered blood pressure, red or bloodshot eyes.
THC affects people by altering key receptors in the body. It is not easily classifiable because it exhibits properties of stimulants, depressants and hallucinogens.
Traces of THC can stay in the human body for weeks after it is ingested and you can test for recent marijuana use in a number of ways, each having their own pros and cons.
Drug testing can be used for testing children at home, employees and potential employees in the workplace, parolees and in other situations where a drug free environment is required.
- Urine drug test kits for detecting marijuana- Pros: quick, easy to use, can get instant results or send to lab. Cons: sample collection can be difficult, cheating is possible.
- Saliva drug test kits for detecting marijuana - Pros: quick, easy to use, instant results or lab results available, saliva sample collection is easy and can be monitored directly, difficult to cheat. Cons: detection window is smaller than other tests and cut of levels or higher for detection
- Hair drug test kits for detecting marijuana - Pros: easy to use, impossible to cheat, gives a very long window of detection of recent drug use. Cons: sample collection somewhat invasive, no instant results available.
For a more comprehensive list of pros and cons for each drug testing method, please visit this page on the pros and cons of various drug tests.
