How Long Does Adderall Stay in Your System?

How Long Does Adderall Stay in Your System? Adderall is the brand name for a type of medication that’s often used to treat attention deficit hyperactivity disorder (ADHD). It’s an amphetamine, which is a type of drug that stimulates the central nervous system.

Official Answer

The half life of Adderall is approximately 10 hours. This means that every 10 hours, half of the previous amount of Adderall in the body leaves your body.

For example, if you took 10mg of Adderall at 12AM (midnight), at 10AM 5mg of Adderall will be left in your body. At 8PM, 2.5mg will be left, and so forth until there is 0mg left in your body. As a guide it takes approximately 5.5 half lives for a drug to be out of your system.

For Adderall then it would take just over 2 days for a dose to be out of your system. (5.5 x 10 = 55 hours – which is just over 2 days). You should allow for longer (7 days) if you have taken Adderall frequently and at high doses.

According to the Cleveland Clinic, prescription stimulants like Adderall improve symptoms of ADHD in 70 to 80 percent of children, and in 70 percent of adults.

Adderall may also be used for some sleep disorders, such as narcolepsy. It is used off label for severe depression.

Adderall has a high potential for misuse. It may be used by people who don’t have a doctor’s prescription to increase attention and focus.

Read on to find out how long this medicine typically stays in your system, as well as how it works and potential side effects.

How quickly does it leave your system? 

Adderall is absorbed through the gastrointestinal tract. It is then metabolized (broken down) by your liver and leaves your body through your urine.

Although Adderall is eliminated through urine, it works throughout the body, so it can be detected in several different ways as outlined below.

Blood

Adderall can be detected by a blood test up to 46 hours after last use. Blood tests can detect Adderall most quickly after it’s been used.

Urine

Adderall can be detected in your urine for about 48 to 72 hours after last use. This test will usually show a higher concentration of Adderall than other drug tests, because Adderall is eliminated through urine.

Saliva

Adderall can be detected in saliva 20 to 50 hours after last use.

Hair

Drug testing using hair is not a common method of testing, but it can detect Adderall for up to 3 monthsTrusted Source after last use.

Summary

  • Blood: Detectable up to 46 hours after use.
  • Urine: Detectable for 72 hours after use.
  • Saliva: Detectable for 20 to 50 hours after use.
  • Hair: May be detected up to 3 months after use.

What can affect how long it stays in your body? 

Different people’s bodies metabolize — break down and eliminate — Adderall at different speeds. The length of time that Adderall stays in your body before it’s metabolized can be affected by a variety of different factors.

Body composition

Your body composition — including your overall weight, how much body fat you have, and height — can affect how long Adderall stays in your system. This is partly because larger people usually need larger medication doses, which means the medication takes longer to leave their body.

However, there is some evidenceTrusted Source that after you take into account the dose according to body weight, drugs like Adderall, which are metabolized by a certain liver pathway, clear from the body faster in people who weigh more or have more body fat.

Metabolism

Everyone has enzymes in their liver that metabolize, or break down, drugs such as Adderall. Your rate of metabolism can be affected by everything from your activity level to your gender to other medications you take.

Your metabolism affects how long a drug stays in your body; the faster it’s metabolized, the faster it will leave your body.

Dosage

Adderall is available in a variety of strengths, ranging from 5 mg to 30 mg tablets or capsules. The higher the dose of Adderall, the longer it can take for your body to fully metabolize it. Therefore, higher doses will stay in your body for longer.

Adderall comes in both immediate and extended-release versions which dissolve in the body at different speeds. This can affect how long the medication stays in your system.

Age

As you get older, it can take longer for medications to leave your system. This is due to several reasons.

  • The size of your liver decreases as you age, which means it can take longer for your liver to fully break down Adderall.
  • Output of urine decreases with age. Kidney function may also decrease as a result of age-related conditions, such as heart disease. Both these factors can cause medications to stay in your body for longer.
  • Your body composition changes as you get older, which can lead to changes in how fast your body breaks down and gets rid of medications.

Organ function

Adderall is absorbed through the gastrointestinal tract, then metabolized by the liver and flushed out by the kidneys. If any of these organs or systems is not functioning properly, it can take longer for Adderall to leave your body.

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