If you're thinking about letting your urine detox by itself, it's probably a good idea to know how long you have to wait. Here is a list provided by NIDA for urine detox drug detection times. It's a bit ironic that urine detox takes the longest for marijuana and marijuana cousins such as hashish. By being more likely to catch those with the longest urine detox times, drug tests are basically biased against marijuana users. It's also rather ironic that urine detox takes only a few hours for alcohol which is, of course, the most widely abused drug in the world.
A random drug test every six months or so is approximately 75% more likely to turn up a marijuana user than a user of any other drug. Considering that marijuana is the most widely used illegal drug, the percentages will actually be much higher in many test groups. Of all drugs, marijuana is the most accepted and the least likely to disrupt lives and work habits. When you review the urine detox tables, you really have to wonder how drug testing is helping improve productivity in the workplace.

Substance

Examples of Proprietary or Street Names

Medical Uses

Route of Administration

Period of Detection

Stimulants

Amphetamines

Biphetamine, Dexedrine; Black Beauties, Crosses, Hearts
 

Attention deficit
Hyperactivity
disorder (ADHD),
obesity, narcolepsy

Injected, oral, smoked, sniffed

Up to 5 days

Cocaine

Coke, Crack, Flake, Rocks Snow

Local Anesthetic, vasoconstrictor

Injected, smoked, sniffed

Up to 7 days

Methamphetamines

Desoxyn; Crank, Crystal, Class, Ice, Speed

ADHD, obesity, narcolepsy

Injected, oral, smoked, sniffed

Up to 5 days

Methylphenidate

Ritalin

ADHD, narcolepsy

Injected, oral

Up to 5 days

Nicotine

Habitrol patch, Nicorette gum, Nicotrol spray, Prostep patch; Cigars, Cigarettes, Smokeless tobacco, Snuff, Spit tobacco

Treatment for nicotine dependence

Smoked, sniffed, oral, transdermal

Up to 5 days

 

Hallucinogens and Other Compounds

LSD

Acid, Microdot

None

Oral

Up to 8 hours

Mescaline

Buttons, Cactus, Mesc, Peyote

None

Oral

Up to 3 days

Phencyclidine & Analogs

PCP; Angel Dust, Boat, Hog, Love Boat

Anesthetic (veterinary)

Injected, oral, smoked

Up to 8 days

Psilocybin

Magic Mushroom, Purple Passion, Shrooms

None

Oral

Up to 8 hours

Amphetamine variants

DOB, DOM, MDA, MDMA; Adam, Ecstasy, STP, XTC

None

Oral

Up to 2 days

Marijuana

Blunt, Grass, Herb, Pot, Reefer, Sinsemilla, Smoke, Weed

None

Oral

Up to 5 weeks

Hashish

Hash

None

Oral, smoked

Up to 5 weeks

Tetrahydrocannabinol

Marinol, THC

Antiemetic

Oral, smoked

Up to 5 weeks

Anabolic Steroids

Testosterone (T/E ratio), Stanazolol, Nandrolene

Hormone Replacement Therapy

Oral, injected

Oral; up to 3 weeks (for testosterone and others); Injected: up to 3 months (Nandrolene up to 9 months)

Opioids and Morphine Derivatives

Codeine

Tylenol w/codeine, Robitussin A-C, Empirin w/codeine, Florinal w/codeine

Analgesic, antitussive

Injected, oral

Up to 2 days

Heroin

Diacetylmorphine; Horse, Smack

None

Injected, smoked, sniffed

Up to 2 days

Methadone

Amidone, Dolophine, Methadose

Analgesic, treatment for opiate dependence

Injected, oral

Up to 1 week

Morphine

Roxanol, Duramorph

Analgesic

Injected, oral, smoked

Up to 2 days

Opium;

Laudanum, Paregoric; Dover's Powder

Analgesic, antidiarrheal

Oral, smoked

Up to 2 days

Depressants

Alcohol

Beer, Wine, Liquor

Antidote for Methanol poisoning

Oral

Up to 10 hours

Barbiturates

Amytal, Nembutal, Seconal, Phenobarbital; Barbs

Anesthetic, anticonvulsant, hypnotic, sedative

Injected, oral

Up to 10 days

Benzodiazepines

Activan, Halcion, Librium, Rohypnol, Valium; Roofies, Tranks, Xanax

Antianxiety, Anticonvulsant, hypnotic, sedative

Injected, oral

Up to 6 weeks

Methaqualone

Quaalude, Ludes

None

Oral

Up to 2 weeks

Information compliments of NIDA



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