If you require a drug test for official matters, you will need a legally-instructed drug test. Those in possession of Class B drugs can face up to five years in prison, an unlimited fine or both. For Class A drug possession, prison time can be as much as seven years.

Types of chromatography testing include GC/MS, liquid chromatography tandem mass spectrometry (LC/MS/MS), and high-performance liquid chromatography. During this separation process, all the individual compounds are fed into a mass spectrometer, that ionizes the compounds and detects fragments by using their mass-to-charge ratios. This process allows for the identification of distinct compounds based on their molecular fingerprints. The negative result is not unexpected because the dose of semisynthetic opioid is too low for detection by IA. In some cases, it’s possible to get a positive test result even if you don’t take amphetamines. Test results may come back positive if you have taken certain antihistamines, nasal inhalers, or cold medicines.

How Are Amphetamines Metabolized in the Body?

These compounds can be identified in the standard amphetamine screening procedures or mistaken for amphetamines. In fact, the Physicians’ Desk Reference provides a list of more than 350 medications that may produce positive test results for amphetamines. Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include Micromedex (updated 2 Jan 2024), Cerner Multum™ (updated 16 Nov 2023), ASHP (updated 11 Dec 2023) and others.

Overuse can lead to addiction, and some can have deadly consequences when overused. Drugs travel from the bloodstream to the hair follicles and can be detected about how long do amphetamines stay in your blood seven to 10 days after intake. Hair structure, growth rate, melanin content, hygiene and cosmetic hair treatment may affect the concentration of drugs in the hair.

Effects of Amphetamines

The most common method for testing for amphetamines is in urine, but it is also done through blood tests. In even less invasive testing, health care workers can use a strand of hair to detect the presence. Keep in mind that, in hair, use over a much longer period can be detected. For amphetamines, no metabolites are identified because these substances normally pass through the body essentially unchanged in chemical structure. So, most amphetamine-specific drug tests are based on urine samples.

Another approach if tampering is suspected is to collect blood samples. Although this method is more expensive and invasive, it eliminates means of tampering. With amphetamines like meth, it is very hard to simply stop using on your own. You may need addiction treatment through a licensed therapist.

What are the street names for amphetamines?

Experts report that some people may benefit from antidepressant medications as they complete the withdrawal process. You may also have a blood test to screen for drugs such as amphetamine. But this test is not considered to work as well as a blood or urine test.

As your hair grows, your body pushes these cells out of your follicles. By the time you can see your hair, the cells have already died — but they’ve also become microscopic time capsules, trapping the meth they absorbed inside. Read on to learn how drug tests detect meth and how your body processes the drug. The effects of amphetamines can last from 30 minutes to eight hours. However, it is important to note that it can take a few days for a person to feel normal again after taking amphetamines. Depending on hair length, amphetamines can be identified for up to 90 days after the last dose.

How Long Do Amphetamines Stay In Your System?

Hair drug tests are effective because when a drug is used, it enters hair follicles and ends up in the hair’s growing strand. Because the drug remains in the hair, amphetamines can be detected in hair for 90–180 days after being used. While half-life estimates can give an overview of how long a drug stays in your system, many factors affect the specific time. Your metabolism plays a significant role in how long Dexedrine stays in your system.

The typical dose of Dexedrine used to treat narcolepsy is 5 to 60 mg each day, taken in divided doses. Dexedrine can be prescribed to patients age 6 years and older for ADHD, and the standard starting dose is usually 5 mg, taken once or twice a day. A hair follicle test can reliably detect meth and its metabolites for about 90 days (3 months) after you last used the drug. However, around 16% of people who use meth regularly will still have detectable meth in their hair after about 120 days (4 months). So, you may need to wait for several months to test negative for meth on a hair test. Amphetamines activate neurons in the central nervous system and work to increase concentration and alertness.

Lab Section:

The speed and intensity of amphetamines are closely related to the method of administration. Oral consumption can take up to 20 minutes to have effects, but snorting can result in effects that onset with 5 minutes. Like other drugs, injecting amphetamines can cause effects that are nearly immediate. If you are taking cough suppressants, antihistamines, antibiotics or other OTC or prescription medications, be sure to report these to drug testing staff. Positive test results for amphetamines can occur and you should be clear about what you are taking. These tests usually contain a sample collection cup, the drug test (it may be test strips, a test card, a test cassette, or other method for testing the urine), and an instruction leaflet or booklet.