There are tales of using Visine, bleach, salt, or detergent to the urine sample, but these items are easily detected by the lab.
All of them can be detected by the laboratory if a separate test is run for them. It is very difficult to physically overdose on marijuana because the lethal dose is so much higher than the effective dose. Very few marijuana overdoses have ever been reported. If someone you know has taken too much marijuana, and that is the only thing they have taken, an overdose is highly unlikely, but that doesn't mean that marijuana is not harmful.
Psychological distress is possible as is impairment of judgment, both of which can lead to hazardous behaviors that can harm yourself and someone else. Although rare, people can experience THC toxicity when using marijuana in high doses, especially in the form of edibles. Symptoms can include:. If you or someone you love has a family history of mental illness, it is beneficial for you to consult your doctor before using marijuana.
The concept of "set and setting" is also important. Since people who have taken too much marijuana can experience sensory overload, minimizing overstimulating inputs in the environment can help them to relax. Some people are also more affected by marijuana than others. You may have a prescription for medical marijuana, or you may want to partake of weed or marijuana edibles in states where it is now legal for recreational use at the state level. There is a common perception that you cannot develop a physical dependence on marijuana, but this is not the case.
Psychological dependence is also a consideration. If you discontinue marijuana after regular or heavy use, you may experience symptoms of withdrawal. Signs of marijuana withdrawal include:. If you find that you can't handle symptoms of withdrawal without relapsing, you may be at risk for a substance use disorder.
Do not be afraid to seek out professional support from a mental health professional. There are therapists who can help you understand your reasons for using. They also can help you determine how cannabis use is impacting your life, and how to develop a plan to stop using if that ends up being the best choice for you.
For more mental health resources, see our National Helpline Database. Learn the best ways to manage stress and negativity in your life. Huestis MA. Human cannabinoid pharmacokinetics. Chem Biodivers. National Institute on Drug Abuse. Updated September Kulig K. Interpretation of workplace tests for cannabinoids. J Med Toxicol. Oral fluid testing for marijuana intoxication: enhancing objectivity for roadside DUI testing.
BMJ Intervention. Comparison of cannabinoids in hair with self-reported cannabis consumption in heavy, light and non-cannabis users. Drug and Alcohol Review. Exercise increases plasma THC concentrations in regular cannabis users. Confirmatory techniques may be specific for a particular THC metabolite, while the screening kits react with virtually all THC metabolites, a further complication in confirming screening results.
SYVA markets two different cannabinoid assay kits with a twofold to fourfold difference in the amount of THC metabolite required to produce a positive test result. Regardless of which assay kit is used, test results should be interpreted by qualified personnel and positive results verified so that there is a very limited possibility of a false-positive result.
Editorial Note: Marijuana is the most widely used illicit drug in the United States; an estimated 50 million people have tried it at least once 8. A recent U. Although further study is needed on the long-term health effects of marijuana use, short-term effects include impaired motor coordination and perception, as well as slowed learning and decreased short-term memory 9. Urine cannabinoid assays permitting extension of testing to nonlaboratory settings, such as industrial sites, probation offices, and schools have been developed.
The relative ease with which the test can be performed encourages its use by nontechnical personnel. Those who interpret data from laboratory or nonlaboratory settings should be aware of possible pitfalls in such testing Whether test results are used for counseling or determining compliance with orders to desist from marijuana use, the laboratory must perform the and schools have been developed. Whether test results are used for counseling or determining compliance with orders to desist from marijuana use, the laboratory must perform the test according to the manufacturer's recommendations, including confirmation of any positive test results.
A recent report indicates that passive inhalation of marijuana smoke by a nonuser is not likely to produce a positive urine test result 11 , but since some passive inhalation does occur, establishment of minimum sensitivity limits by a laboratory must be done cautiously. Tolerance and disposition of THC in man. Pharm Exp Ther ; Marijuana analysis: results of a recent interlaboratory survey. Clin Chem ; Tests include blood, urine, hair, and saliva.
Marijuana drug tests look for THC, not marijuana. So the amount of THC that a person consumes is the significant factor. The effects of THC are cumulative. This means that a person who smokes several times over several days has consumed a higher THC dose than someone who smokes once, and so they are more likely to test positive.
The strength of each dose of THC also matters. Without sensitive laboratory equipment, a person cannot reliably determine the strength of their marijuana. Since fat stores marijuana, people with higher body fat concentrations may metabolize marijuana more slowly than a person with less body fat.
Body mass index BMI is one way to judge body fat. Typically, females have more body fat than males. This means that females may metabolize marijuana slightly more slowly.
Dehydration increases concentrations of THC in the body. While drinking lots of water is unlikely to affect a drug test significantly, severe dehydration might.
Exercise will not significantly change the rate at which the body metabolizes THC. Exercising before a drug test, however, might. A small study of 14 regular marijuana users assesses the effects of 35 minutes of exercise on a stationary bike. The results conclude that THC concentrations increased by a statistically significant amount, suggesting that exercise right before a drug test may increase the likelihood of a positive test result. The researchers believe that exercise may cause fat cells to release THC.
For a drug test to be negative, the body must eliminate THC from the system, as well as metabolic chemicals that have links to THC. You might be at an increased risk of developing:. Some effects, like memory problems or trouble sleeping, can last a few days. Long-term effects can last days, weeks, or months after weed use has ended.
Some effects may be permanent. Weed may stay in your system anywhere from several days to several months after last use. Detection windows depend on the drug test used and other factors, such as whether you smoke or ingest weed on a regular basis. Despite misconceptions, marijuana can be addictive. Learn what to expect from marijuana withdrawal. You may begin to feel its effects…. Health officials are concerned about the increase in teens vaping cannabis because of the effects the drug can have on the brains of people under Here are Healthline's picks for the best CBD oils for joint….
Terpenes are one part of the equation when it comes to determining cannabis's effects. We break down the limited research and offer tips. New to cannabis? A seasoned consumer and cannabis journalist shares her expert tips for making the most of your first time. What happens when you smoke or ingest marijuana? Learn the effects it has on your body with this interactive graphic. Health Conditions Discover Plan Connect. Medically reviewed by Zara Risoldi Cochrane, Pharm.
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