Drug Tests - Essential Info - The Good Drugs Guide

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The majority of drug tests are urine tests. There are two types.

standard urine tests	cannabinoids (cannabis, marijuana, hash) amphetamines (amphetamines, methamphetamine) cocaine (cocaine hydrochloride, crack) opiates (heroin, opium, morphine, codeine) PCP (pencyclidene)
advanced urine tests	barbituates (phenobarbital) qualuudes (methaqualone) benzodiazepines (valium, rohypnol) methadone ethanol (alcohol)
hair tests	can detect most drugs up to 90 days after use.
blood tests	are rare and expensive, and usually only done in criminal investigations
also	mouth swabs and saliva samples can be analysed for drug use but these are less effective

LOOK UP CHART

substance	standard tests	detection period (hrs)	comments
amphetamines	Y	24-72	false positives may be caused by a variety of over-the-shelf & prescription medicines - see full list here
cannabis	Y	48-72	can be detected up to 12 weeks in a chronic user
cocaine	Y	48-72
ecstasy (MDMA)	N	24-72	can be detected by a test for Amphetamines
heroin (opiates)	Y	24-48	several over the counter medicines may cause false positives - list here
ketamine	N	unknown	tests for K are extremely unlikely
LSD	N	24-48	very unlikely test as amounts used are microscopic
mushrooms (psilocybin)	N	unknown	very unlikely test
methamphetamines	Y	24-96

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