When taken orally, amphetamine peaks at 12 hours. If taken intravenously, the elimination half-life is about Adderall XR, a long-acting form of prescription amphetamine, lasts up to 12 hours in most healthy children.
The following is an estimated range of times, or detection windows, during which amphetamine can be detected by various testing methods. Amphetamine can be detected in a urine test for two to five days since the last dose. Blood tests for amphetamine, which are typically done in a hospital setting, can detect the drug for up to two days. A saliva test, which uses a special device to extract a sample of saliva and deposit into a tube, can detect amphetamine for one to five days since last use.
Amphetamine, like many other drugs , can be detected with a hair follicle drug test for up to 90 days. The following drugs can produce false-positive results for amphetamines on a urine drug screen:.
Trying to determine exactly how long amphetamine is detectable in the body depends on many variables, including how frequently it has been taken, how much was taken, and the person's metabolism, body mass, age, and overall health.
Prescription amphetamines come in different strengths as well as immediate and extended-release forms, which can impact how long it takes for your body to metabolize the drug. For example, a 5mg dose of Adderall will have a shorter detection time than a 5mg dose of Adderall RX the extended-release form. Your liver and kidney function can play a role in how long it takes for your body to excrete amphetamine.
People with decreased hepatic or renal function may eliminate amphetamine more slowly. People who use amphetamine very frequently or as prescribed by a doctor will have longer detection times than those who use the drug one time. People with high metabolisms process and excrete amphetamine more quickly than those with a slower metabolism. Your metabolic rate can be affected by age, activity level, and overall health.
The method by which you take amphetamine—swallowing, snorting, smoking, or injecting—also influences detection time. In general, the faster the drug is absorbed into the bloodstream, the shorter the detection window, so if you smoke or inject amphetamine, it will leave the body faster than if you snort or swallow it. While many people try to sweat out or flush out amphetamines from their systems, the only proven way to clear your body of the drug is to discontinue use and to give your body the time it needs to metabolize and eliminate it.
One reason that it is important to know how long amphetamine remains in your system is because of the risk of overdose. If you or someone you love is prescribed a long-acting amphetamine, like Adderall RX, be sure to always swallow capsules whole; they should never be chewed or crushed, as this could release all the medication at once and increase your risk of overdose.
Several studies showed that ephedrine increases resting metabolic rate — the number of calories your body burns at rest — which may be due to an increase in the number of calories burned by your muscles 4 , 6. Ephedrine can also boost the fat-burning process in your body 7 , 8. One study found that the number of calories burned over 24 hours was 3.
Another study observed that when obese individuals went on a very-low-calorie diet, their metabolic rate dropped. However, this was partially prevented by taking ephedrine 9. In addition to the short-term changes in metabolism, some studies show that ephedrine can promote weight and fat loss over longer time periods. In five studies of ephedrine compared to a placebo, ephedrine led to weight loss of 3 pounds 1.
However, long-term data on the usefulness of ephedrine for weight loss is lacking Additionally, many ephedrine studies examine the combination of ephedrine and caffeine rather than ephedrine alone Ephedrine, a major component of ephedra, can increase the number of calories your body burns. Research has shown this results in greater weight and fat loss over weeks to months, though long-term studies are limited. Many studies examining the weight loss effects of ephedrine have combined this ingredient with caffeine.
The combination of ephedrine and caffeine appears to exert greater effects on your body than either ingredient alone 12 , For example, ephedrine plus caffeine increases metabolic rate more than ephedrine alone Some research has even reported that caffeine and ephedrine individually had no effects on weight loss, while the combination of the two did produce weight loss Over 12 weeks, ingesting a combination of ephedra and caffeine 3 times per day led to a reduction of 7.
Another 6-month study in overweight and obese people compared a supplement containing ephedrine and caffeine to a placebo during a weight loss program The group taking ephedrine lost 9. The ephedrine group also decreased body weight and LDL bad cholesterol more than the placebo group.
Overall, the available evidence indicates that ephedrine-containing products — particularly when paired with caffeine — may increase weight and fat loss. Women over the age of 50 have increased needs for several vitamins and minerals. Here are the 10 best multivitamins for women over Taking certain dietary supplements may be beneficial for lung health. See which vitamins our registered dietitian recommends as the best for….
Health Conditions Discover Plan Connect. Medically reviewed by Natalie Butler, R. But does it work? And more importantly — is it safe? Keep reading to learn more. Does it work? Is it safe to use? What can I use instead? The bottom line.
Read this next. Written by Grant Tinsley, PhD. The Surprising Truth. When ephedrine binds to these receptors, it initiates a Fight or Flight response like that which we experience in times of acute stress or physical danger. As a result of its stimulant mechanisms of action, ephedrine is known to promote short-term weight loss, mostly associated with decreased fat mass. However, clinical studies on these effects have only lasted up to 6 months. There is not enough reliable evidence to rate the efficacy or safety of using this drug for with loss for periods longer than 6 months.
Ephedrine tablets are commonly reported to suppress the appetite and delay gastric emptying. Its effects are increased when taken with caffeine and aspirin in an ECA Stack. Products that contain ephedrine alkaloids are considered stimulants and performance enhancing drugs PEDs.
Ephedrine differs from methamphetamine crystal meth only by the addition of a hydroxyl group -OH. It can cause false positive results on drug screen assays used by athletic associations and probation departments to detect amphetamines. If you are preparing for an athletic event and want to use ephedrine to enhance your performance, check with the governing association for your sport to determine whether this drug is banned for you.
If you are concerned about this medication causing a false positive on a laboratory test, discontinue using it at least one week prior to testing. This will allow enough time for it to be completely cleared from the body. Ephedrine is not recommended for children under 12 years of age or for women who are pregnant, want to become pregnant, or are breastfeeding.
Appropriate oral use of this medication does not usually cause severe adverse effects in most people. However, some negative side effects are associated with use of this stimulant compound including:. Misuse or abuse of ephedrine-based drugs can cause serious adverse effects including arrhythmia, tachycardia, myocardial infarction heart attack ischemic stroke, a brain seizure, or death. Nasal decongestant and antiasthma medications that contain this active ingredient can interact with numerous drugs, herbs, and dietary supplements.
Some of these include other stimulants, MAOIs, antidepressants, and pharmaceutical agents that get metabolized in the liver. If you use any prescription medicines, then it is best to speak with your doctor or pharmacist before beginning to use an ephedrine product. How long ephedrine lasts in your body will depend on various factors and your results may be different than those reported above.
Do not use ephedrine as a substitute for a healthy diet or regular exercise if you are trying to lose weight.
Using this drug improperly in any form can cause long-term damage to your body. Your email address will not be published.
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