• Skip to main content

USA Mobile Drug Testing

  • Services
    • Order Drug Testing Online
    • Drug Testing Near me
    • Drug Testing
    • Background Screening
    • Training and Support
    • Consumer Services
  • Customer Login
  • Blog
  • Drug Testing Locations – Drug Testing Near Me
  • Contact

Home / Drug News / How Long do Drugs Remain in Your System?

How Long do Drugs Remain in Your System?

November 13, 2014 by David Bell

Last updated : May 12, 2025

Drug testing is routine when you’re applying for a new job and, in some states, government benefits. Passing a drug test may also be key to keeping your employment status. One question people often ask is “How long do drugs stay in my system?” There is no one answer, however, because different drugs stay in the human body longer than others, and some testing methods may be able to test for drugs for a longer time period.

For example, alcohol can show up in a urine test up to five days after consumption, even though blood samples only show the presence of alcohol up to twelve hours. During a drug test via hair, alcohol can be present for 90 days. Heroin stays in the body for the same amount of time.

Marijuana stays in the body for much longer. It spends two weeks in the blood stream and between seven and 30 days in your urine. However, many drugs exit the system much quicker than marijuana. A blood test has to catch codeine within 12 hours while urine drug testing will come back positive for codeine after a day.

Drugs known as barbiturates spend up to four days in urine and two days in blood. Benzodiazapines are present in urine between three and six weeks while appearing in blood test up to three days later. Cocaine and ecstasy are in urine for four days and in blood for two days. Methadone has a similar timeline. Finally, methamphetamine stays in urine up to six days and in blood up to 72 hours.

If being drug-free is part of your parole or probation agreement, stringent testing can show if you’ve cheated. In fact, the only drug that can’t be detected within 90 days is LSD, which spends just three days in your hair.

Filed Under: Drug News

Ready to learn more or schedule a drug test?

Service area:

USA
Canada

Find a drug testing location

  • Alabama
  • Alaska
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • District of Columbia
  • Delaware
  • Florida
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Hampshire
  • New Jersey
  • New Mexico
  • New York
  • North Carolina
  • North Dakota
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Puerto Rico
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin
  • Wyoming

About David Bell

After seeing the damage caused by drug use first-hand, David sold his previous company and worked his way up through the ranks in the drug testing industry to help employers keep drugs and alcohol out of the workplace.

© USA Mobile Drug Testing

800-851-2021

14502 N Dale Mabry #200,
Tampa, FL 33618


  • Headquarters Website
  • Franchise Information
  • Become an Affiiliate

Drug Testing Methods

  • Urine Drug Test
  • Mouth Swab Drug Test
  • Hair Drug Test
  • Blood Drug Test

Drug Testing Panels

  • 5 Panel Drug Test
  • 9 Panel Drug Test
  • 10 Panel Drug Test
  • 12 Panel Drug Test

Drug Testing Conditions

  • Pre-Employment Drug Testing
  • Random Drug Testing
  • DOT Drug Testing
  • Reasonable Suspicion Drug Testing
  • Post-Accident Drug Testing
  • Probation Drug Testing

Web design by Spartan Media

Do you need a drug test conducted at a certain date and time? Call us at and we will dispatch a mobile collection specialist to administer your drug tests at any location, 24 hours a day, 7 days a week.

x

Are you looking for more information about drug testing, a drug free workplace program, or compliance? Call us at and we'll be happy to answer any questions you may have and tailor a program to your specific needs.

x