Vyvanse is a drug used to treat symptoms of ADHD. It comes in tablet, capsule and chewable form and can be taken by mouth or mixed with liquids or yogurt. It reaches its maximum concentration in the bloodstream within an hour and has a half-life of less than 12 hours. After that, the active ingredient, lisdexamfetamine, is converted to dextroamphetamine and begins to break down into other compounds that could remain in the body for longer periods of time.
The amount of Vyvanse you take, how often and for how long it is taken can affect the duration it remains in your system. Your metabolism rate can also affect how long it takes for the drug to be eliminated. It is recommended that you follow the dosing instructions on your prescription. It may take several weeks to completely eliminate this drug from your system. You can try to speed up the process by doing exercise, sweating and taking a healthy diet.
There are a variety of ways to test for the presence of drugs in the body, including urine tests, saliva tests, blood tests and hair tests. Urine tests are considered the quickest way to detect drugs in the body and can provide results for up to 24 hours after use. Saliva tests have a shorter detection window but offer similar results to urine tests. Blood tests are more invasive and expensive than urine or saliva tests. Hair tests can detect traces of drugs up to 90 days after use.