However, it may be detectable for up to 3 days after intake in a more sensitive lab saliva test. If you are applying for a job, or believe your employer will drug test you soon, take note of your cannabis use. Bear in mind that you won’t get much notice before the screening. If you are unable to abstain, you will need to depend on the THC detox drinks you see online.
How do individual metabolism and excretion affect weed detection times?
This means it might clear from your urine in just a few days. This study did have a limited number of cannabis users (22, based on urine results), though, so it should be taken with a pinch of salt. Another piece of research with 25 participants (Desrosiers et. al., 2014) found that THC-COOH was still detectable (at 1 ng/mL or more) after 30 hours. However, they did not measure beyond 30 hours to find the last negative result time. However, technology to detect cannabis use in the urine longer than this certainly exists. In fact, with a much smaller cutoff value of 20 ng/mL, regular users can still have detectable cannabis metabolites in their system for over 30 days.
- Through continual dosing, you could theoretically maintain the effects indefinitely.
- That’s how we can say with high probability that such an individual should pass a standard laboratory drug test for marijuana.
- However, blood tests are not as common as the other types listed here.
How Long Does Weed Stay In System After Quitting Smoking?
The half-life of THC in a healthy adult is between 28 hours to 36 hours. This is because, when smoking, a lot of THC is lost to fire and side smoke. Keep in mind that the results we’ll discuss apply if you’re consuming marijuana as Delta-9 THC, Delta-8 THC or Delta-10 THC. THC elimination times vary quite a lot between individuals. That’s how we can say with high probability that such an individual should pass a standard laboratory drug test for marijuana.
Precautions in Consuming Cannabis Edibles
- However, if you have to take a drug test you’ll have to get some rest without weed.
- It can remain in the body’s fat cells for literally months at a time.
- Of course, it’s important to note that there are outliers in any population.
- These must travel through the digestive system before they reach the brain, so it takes longer for them to take effect.
Hair tests can produce false positives or negatives and are less common than other types of drug tests. Knowing how long THC stays in your hair is vital, especially if you plan to undergo drug testing in the future. Drugs stay in your bloodstream for varying lengths of time.
Factors Influencing THC Duration and Detection
The study authors concluded that THC, THCA-A and THC-OOH can be present in the hair of people who never consumed marijuana. They explained cannabis users can transfer these substances to a nonuser through contact with their hands, sweat or exhaled smoke. A 2009 study published in the journal Addiction tested THC blood concentration levels in 25 frequent, long-term cannabis users over seven days of abstinence. Sixteen users had at least one positive THC test during those seven days. Six users displayed positive THC levels on the final day of abstinence. For example, in a 2005 review of drug detection literature, the author noted that while it’s possible for cannabis detection times to exceed 30 days, it’s a very rare occurrence.
- Another common method to pass a urine test is the fruit pectin method.
- Each half an inch of hair captures around 30 days’ of drug use (Gryczynski et. al., 2014), so a 1.5 inch sample of hair can cover 90 days of cannabis use.
- For example, certain benzos may take longer for your body to process than other benzos.
- This study did have a limited number of cannabis users (22, based on urine results), though, so it should be taken with a pinch of salt.
- So you may wonder how long it takes for weed to leave your body after you stop using it and whether there are ways to get weed out of your system faster.
- When you ingest medical cannabis, such as with edibles, the effects are delayed by digestion and take between 30 minutes to two hours to take hold after consumption.
However, if you are smoking weed regularly, your body’s fat cells contain copious amounts of THC metabolites. It is actually believed cannabis has the longest detection window in hair. In fact, the hair drug test was developed to identify long-term users rather than one-time or infrequent users. Standard hair tests typically look for drugs used over the last 90 days. Drugs can stay in saliva for varying amounts of time, depending on the drug.
The Oral Dose data comes from Law et al., from the same publication in May 1984. This is old information, but it does paint a troubling picture for cannabis users. In many cases, they involve drinking a ton of water along with the product. At that stage, you don’t know if how long does weed stay in your system it is the drink or the excess water helping!
How Long Do Edibles Stay in Your System?
First-time users and infrequent users are much less likely to test positive for weed from a hair follicle test. It takes a decent amount of consumption for cannabis metabolites to reach hair follicle tissue. When smoking marijuana, THC enters the system almost immediately. However, if you use edibles or other consumption methods, it can take hours for THC to enter the bloodstream. Whichever consumption method you use, the result will be the same; your body metabolizes the intoxicating compounds. Marijuana can be found in breast milk, but how long the drug stays detectable can vary widely.