Drug Test FAQ

Q) Is testing for drugs difficult and does it work ?

A) Drug testing is an easy and accurate method of detecting drug misuse.

Q) How can I screen for drugs of abuse & what do I do with the results ?

A) Most drugs can be screened for using either saliva or urine. These tests are immediate with results in under 10 minutes on-site. Confirmation samples can then be sent for laboratory analysis on positive samples. Negative samples are not usually followed as the accuracy of this biotech is very good.

Q) How effective are skin wipes for testing for drugs ?

A) Skin wipes are less available and have only been marketed recently, so their effectiveness and selectivity remains to be proven clinically.

Q) Can blood be tested for drugs ?

A) Blood testing is only used for a limited range of drugs and is not available for business or private use.

Q) Is hair testing for drugs available ?

A) Hair testing looks back up to 3 months but is lab based and expensive per screen. Mostly this makes urine and saliva the first choice screening method.

Q) How long do drug tests detect drugs for ?

 A) Urine Drug Detection Times & Cut Offs
Abbreviated name on drug test, proper name, other names approximate detectable time it remains in the URINE after use.


AMP 1000ng/ml Amphetamines Speed, amph or whizz. 2-6 days
BAR 300ng/ml Barbiturates Depressants, Barbs, Downers 3-8 days
BUP 10ng/ml Buprenorphine Subutex 3-6 days
BZO 300ng/ml Benzodiazepines Benzos, Rohypnol or roofies 2-14 days
COC 300ng/ml Cocaine Coke, crack or charlie. 2-5 days
MDMA 1000ng/ml Methylenedioxymethamphetamine Ecstasy or E’s 2-6 days
MET 1000ng/ml Methamphetamines Glass, ice or meth. 2-6 days
MOP 300ng/ml Morphine 2-5 days
MTD 1000ng/ml Methadone Dolly, Red Rock 2-8 days
OPI 2000ng/ml Opiates Heroin, smack or gear. 2-5 days
PCP 25ng/ml Phencyclidine Angel dust or peace pill 3 – 8 days
TCA 300ng/ml Tricyclic Antidepressants TCA 6 -10 days depending on duration of drug use.
THC 50ng/ml Marijuana Cannabis, puff, spliff or hash. Casual use 2-14 days heavy use up to 30 days.
EDDP 300ng/ml EDDP screening tests. Detects for up to 5 days after use
OXY 300ng/ml Oxycodone 2-5 days
PXP 300ng/ml Propoxythene 2-5days

The amount of time drugs stay in the body depends on many factors such as, the amount of the drug taken, its strength, purity, the body weight of the person being tested and rate of metabolism, and whether they are a casual user or a long term user.

Saliva or Oral Fluid Drug Testing Detection Times

Cut offs are brand specific and as a guide the window period for drug detection using saliva or oral fluid drug test are shorter than comparable urine test.


THC 4ng Cannabis detection for 14-24hrs
COC 25ng Cocaine detection for 24-48hrs
OPI 2ng Opiate & heroin detection for 7-21hrs
MET 3.75ng Methamphetamines & Amphetamine detection for 72hrs


Cannabis, 12ng/ml up to 14 hrs
Cocaine, 20ng/ml up to 24hrs
Opiates, 40ng/ml up to 48 hrs
Amphetamine, 50ng/nl up to 72 hrs
Benzodiazepines 50ng/ml up to 48 hrs


AMP 50ng/ml Amphetamine up to 72hrs
THC 12ng/ml Cannabis up to 12hrs
MET 50ng/ml Methamphetamine up to 72 hrs
OPI 40ng/ml Opiate & Heroin up to 48 hrs
COC 20ng/ml Coacine up to 24 hrs
MTD 30ng/ml Methadone up to 48 hrs

Click here for more info on drug testing kits for urine and saliva

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