How Long Does Heroin Stay In Your System, Blood and Urine?

Signs of drug use can remain in a person’s system long after the physical effects wear off. The analysis can determine whether a person used specific drugs days or weeks before testing. When how long does heroin stay in your system you use meth, your bloodstream carries it to every part of your body, including the cells in your hair follicles. As your hair grows, your body pushes these cells out of your follicles.

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As a result, false positives for 6-MAM are practically unheard of. Morphine is another heroin byproduct that is detectable in drug tests. False positives for morphine can occur through recent ingestion of poppy seeds. When heroin enters the body, it is rapidly broken down into other substances called metabolites. Because it takes around five half-lives for the body to get rid of a drug, heroin itself will be undetectable in the blood after about 15 minutes. However, heroin’s metabolites have longer half-lives, meaning they can be detected for much longer.

Detection times

If a company or organization requires a person to take a 10-panel drug test, they will generally give them notice of about 24 hours. Some professions may require the person to agree to random drug testing where they have little to no knowledge of the test beforehand. Another important fact to note is that a 10-panel drug test will not tell if the person is currently on the drug. The tests measure byproducts in the body that come from breaking down the drug, so they cannot detect how much of the drug is circulating in the body.

A urine drug screen can quickly, effectively detect some illegal and prescription drugs. Doctors, sports officials, and employers may request this type of test for various reasons. It is important to note that consuming certain legal substances can lead to false-positive IA test results. For example, consuming high enough quantities of dextromethorphan, a common ingredient in cough syrups, can cause a positive result for PCP on this type of test. Drug and alcohol rehabilitation programs may request urine drug screens at initial assessments and follow-up appointments. A doctor may request a urine drug screen if they think that a person has been using illegal drugs or misusing prescription drugs.

Drug Quality

Your blood alcohol concentration (BAC) reflects this and shows how much of your blood is alcohol. Heather transitioned into the substance abuse field in 2012 where she began her career in referral relations and the admissions aspect of the industry. She has also trained in several models of intervention training and education over the last 8 years and has been a candidate member of the Association of Intervention Specialists since 2012. Heather is currently pursuing her CIP through the Pennsylvania Certification Board. She started out at a non-profit psychiatric facility where she was involved in residential services, crisis unit, and detox services. After obtaining a Bachelor’s degree in psychology from FAU she assumed the role of case manager where she excelled in working with the dual diagnosis population.

how long does heroin stay in urine

Urine tests are the most commonly used, and can detect heroin up to 7 days after the last use. Addiction Resource is an educational platform for sharing and disseminating information about addiction and substance abuse recovery centers. Addiction Resource is not a healthcare provider, nor does it claim to offer sound medical advice to anyone. Addiction Resource does not favor or support any specific recovery center, nor do we claim to ensure the quality, validity, or effectiveness of any particular treatment center.


A drug’s half-life refers to the amount of time it takes for half of the dose taken to be processed by the body into metabolic by-products. It takes four to five half-lives for a substance to be eliminated from a person’s system. Compared to other drugs heroin has a particularly short half-life of two to six minutes, and is metabolized to 6-acetyl morphine and morphine. Morphine takes longer to work than heroin and the effects tend to last longer. Despite this, blood tests can only detect morphine for the first 12 hours after the last dose, and urine tests only work for up to 3 days.

how long does heroin stay in urine

Age, gender and ethnicity can all play a role in how long a drug stays in your system. Drugs tend to linger for longer periods in the bodies of older adults, especially if they have underlying health or kidney problems. Gender can also play a role, as male bodies can process substances like alcohol more quickly than female ones. Lastly, ethnicity can also influence how long a drug stays in your system, as some genetic traits are more common in certain ethnic populations. Ethnic differences in genes for the enzymes that help the body break down substances can mean that substances may last longer in the bodies of people from one ethnicity versus another.

If an initial result is positive, a person may need to take a second, more accurate test. The person who carried out the test or a medical review officer will explain the results. If a result is positive, a person may need to take a second test for confirmation. Overall, the more frequently and heavily drug use occurs, the longer the drug will be detectable. Usually, people only request GC-MS tests as follow-ups because they are more expensive, and the results take longer. If you’d like to stop using meth, support from a trained specialist can help you take the first steps toward recovery.

If you take a drug frequently or in large doses, there is a higher chance that it will build up in your system. This is especially true of drugs that tend to deposit in the body’s fat, such as cannabis. Drugs can stay in your breast milk for hours or even days after the last use. While drug tests are usually not performed on breast milk, it is still important to know whether drugs will show up in your breast milk if you breastfeed or are planning on breastfeeding. If you take a drug — whether prescribed or illicit  — and are pregnant or breastfeeding, you should inform your doctor so they can let you know if it is safe for your baby. Marijuana does not stay in the blood for long and is undetectable after around three to four hours.

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