Generic Name: Lisdexamfetamine dimesylate (lis-dex-am-FET-a-meen die-MESS-ill-ate)

By Tammy Preston, MS

Brand Name: Vyvanse (VIE-vance)

Marketed by: Shire Pharmaceuticals

What Is Vyvanse?

Vyvanse is the latest central nervous system stimulant approved to treat adult ADHD. As with other stimulants, it affects chemicals in the brain that play a part in hyperactivity and impulse control.

The drug was launched in July 2007 to treat ADHD in children. Then, in April of 2008, Vyvanse was FDA approved for the treatment of adult attention deficit hyperactivity disorder.

How Is Vyvanse Different from Other Stimulant Drugs?

It is likely that Shire Pharmaceuticals launched Vyvanse for two reasons. First, their flagship ADHD drug Adderall XR will soon be going generic. So having a new, patented brand name ADHD drug is good business for them.

Secondly, on the less cynical side, Vyvanse is truly different from other extended release stimulant ADHD drugs. Lisdexamfetamine dimesylate, the active ingredient, is actually a therapeutically inactive prodrug. This means that the psychostimulant is released and activated more slowly, because the body needs to change the lisdexamphetamine molecule before it is therapeutically active. This process naturally makes lisdexamfetamine into an extended-release formulation. The extended release feature is therefore an integral part of the molecule itself, rather than being dependent on how the capsule is constructed.

Shire Pharmaceutical’s main message in marketing Vyvanse is that this type of natural time-release medication is less prone to misuse and abuse, a safety factor important for doctors prescribing the drug. Drugs that are prone to abuse are not only potentially dangerous for patients, but may also be stolen by others seeking stimulants for illegal recreational drug use.

How Does Vyvanse Work?

As with all other stimulant drugs used to treat adult ADHD, Vyvanse is believed to increase the flow of the neurotransmitters dopamine and norepinephrine, chemicals that carry the signal between neurons (cells of the nervous system). This can result in an increase in a person’s ability to focus over extended periods of time.

How Do I Take Vyvanse?
When first launched, Vyvanse was only available in 3 dosages: 30 mg, 50 mg and 70 mg. In January of 2008, Shire Pharmaceuticals announced the FDA approval of three new dosage strengths of 20mg, 40mg, and 60 mg.

Vyvanse should be taken with a full glass of water in the morning as a once-a-day capsule. Once a day dosing is convenient and makes it easier for patients to avoid missing doses.

Another unique advantage of the prodrug formulation is that patients who have difficulty swallowing pills can open their Vyvanse capsule and sprinkle the medicine into a glass of water, as long as they drink the water right away. This can’t be done with extended release formulations that are dependent of the structure of the capsule to slowly release the medication.

Do not, however, mix Vyvanse with anything other than water. Juice and other acidic or alkaline foods and beverages can interfere with the effectiveness of amphetamines.

Is Vyvanse Effective for Adult ADHD?
In its Phase II trials, Vyvanse was shown to be effective within the first week of use in the treatment of symptoms of adult ADHD. Clinical studies with adults have shown that Vyvanse does significantly improve the symptoms of adult ADHD (inattention, hyperactivity and impulsivity) when compared with placebo (no drug). It is still unknown whether Vyvanse is more effective than the other stimulant medications used to treat adult ADHD.

Vyvanse Minor Side Effects
The most commonly reported side effects of Vyvanse are dry mouth, decreased appetite and insomnia. These problems generally decrease over time.

Vyvanse Precautions

Addiction & Abuse
Although, as a prodrug, Vyvanse is less prone to being abused, it is still ultimately converted into a stimulant drug, so there is always the potential for abuse. As a stimulant, it is also possible for patients to develop an increasing tolerance to the medication over time. If you are taking this drug, or any stimulant for the management of adult ADHD, keep track of how many capsules you have used from each new prescription bottle.

Seek immediate emergency medical attention if you believe that you may have taken too much of this medicine. Overdose of Vyvanse can be fatal.

Cardiac Precautions
Stimulant drug therapy may not be right for you if you have a history of heart problems, such as hardened arteries (arteriosclerosis), heart disease, high blood pressure (hypertension), or any other pre-existing cardiac condition.

Other Precautions
The drug is also not recommended for people with overactive thyroid, glaucoma, epilepsy and seizure disorders, severe anxiety or agitation and those who have taken MAO inhibitors within the past two weeks. Before taking Vyvanse, be sure to tell your doctor if you have any of these problems.

Pregnancy Category C
As a category C medication, Vyvanse may be harmful to an unborn baby. Vyvanse can also be passed to the baby through breast milk. Tell your doctor if you are pregnant or plan to become pregnant while you are receiving drug treatment for adult ADHD.

Total Treatment of ADHD
Vyvanse, or any medication used to treat ADHD, should be used as a part of a total treatment program. Comprehensive treatment of the adult ADHD often includes education, support groups, regular doctor appointments and therapy or counseling.

Vyvanse Withdrawal
If you stop taking Vyvanse abruptly, it can result in severe withdrawal symptoms, including mood swings, fevers, insomnia, cravings for Vyvanse, and sleepiness.

Adler L et al. Efficacy and Safety of Lisdexamfetamine Dimesylate in Adults with Attention Deficit Hyperactivity Disorder. Paper presented at: American Academy of Child and Adolescent Psychiatry Annual Meeting; October 25, 2007; Boston, MA.

Vyvanse [package insert]. Wayne, PA: Shire Pharmaceuticals Inc; 2006.

Vyvanse official website.



  1. William Chapman says

    What foods should be eaten while taking Vyvanse so it is more effective?

  2. I take this so I am able to study more efficiently, so I need to take this every single day?

  3. Sylvia Cobbs says

    So how does vyvanseaffct person with MS?

  4. My 13 year old son is taking Vyvanse Extended Release (40 mgs). He has a very high metabolism. How long is Vyvanse expected to remain in his system? Should he still be taking a “booster” in the late afternoon? If so, should it be more Vyvanse or another drug? I notice he is fine in school, but by late afternoon he seems to have really lost focus. Thanks for any guidance.

  5. Vyvanse addressed the severe depression caused by my Adhd. It’s saved my life.

  6. gerard klunek says

    I had an RNYGB in 2000. I am taking 70 mg of Vyvanse. The duration of the drugs potency wains within four hours. The gastric bypass removed the duodenum, jejune, thereby preventing the release of enzymes, acids that are necessary to properly metabolize any extended release medication such as Vyvanse. When working it is highly effective but the short-duration frustrates. I just began taking Buprion (Wellbutrin) 75 mg. Do you have any suggestions that would lengthen the duration and efficacy of the 70 mg of Vyvanse? Is the addition of Wellbutrin a reasonable way to potentiate Vyvanse? Would consuming grapefruit juice enhance or mitigate the overall effectiveness and time duration for Vyvanse?

  7. Fuck you

  8. This site is fucking retarded

  9. Morgan.F says

    First off, the age on my email is fake. Second, I am 14 and have been taking the pill since I was 13. It has helped me ever since. I don’t know anyone else who has taken it near my age but that doesn’t mean that just because it worked for me that it will work for you.

  10. Vyvanse gives me the focus and concentration I needed from the time I was a little kid. Today I can be productive and work at a comfortable pace. My quality of life and work is like day and night!

    My complaint about this drug is the twisted, lies that have been spread. I am a recently enrolled VA beneficiary and my poorly informed psychistrist told me that Vyvanse is NOT a VA approved medication…. She and the psychologicist at Shavano Clinic in San Antonio referred to it as ,”speed” then she changed my long standing civilian private practice psychiatrist’s bonofide ADHD diagnosis to bi-polar! The meds I was prescribed didn’t help me focus or anything productive. I took the meds for 2 months before again requesting Vyvanse to treat my ADHD…the answer was no and then the insinuation that I just wanted speed. Not true. I just want to be treated as the adult, responsible adult I am and treated as a patient who knows the difference between getting high vs using a legal, effective treatment for the debilitating illness ADHD is! I want someone from the drug maker to contact me and help me fight the VA for patients like me who should have access to any and all treatment available on the open medical treatment market.

  11. Tom Armbruster says

    Its to bad so many people are so ill informed. This drug can change a life, if diagnosed properly by a competent MD. It’s a work of art. The minds that put this stuff together can only in my opinion be thanked. Most importantly it is paramount to have a good doctor. There is a shortage of psychiatrist’s unfortunatley. Don’t let that stop you. Hunt for one. Do not use your family doctor. Their NOT trained in this area well enough. Find a good psychiatrist. They are out there. — I was fortunate. Wishing the best for all of you.

  12. Tom Armbruster says

    If your having trouble with a certain insurance carrier covering it or Mental Midgets who just don’t understand the seriousness of the benefits of this drug… Find a way. Get coverage in another way. Write SHIRE and tell them your issue. Find a different doc. Whatever you do don’t throw your hands in the air and give up. Do a self study on what this stuff does for you and share it with unrelentingly confidence with those professionals who are in your way. Hit them with facts and examples untiringly. There is a study done by the University of Chicago that describes what can happen if ADHD goes undiagnosed in to adult life. You can find it in JSTOR. Read it. Copy it and throw it at the ignorant, self important, high ego no it all’s. Beat them with it… metaphorically of course. Don’t stop. It’s your life, no one else’s. Good luck.

  13. I accidentally left my vyvanse in a room with a humidifier for three days. It barely works now, could the humidity have damaged them, making them barely work? If so, it dangerous/bad?

  14. Clarissa Nicole says

    B-vitamins can be used to treat adhd and depression. B-vitamins are so easily cooked out of food that it is a problem for a lot of us.

    Also, the capsules for vyvanse contain titanium dioxide which is poison for our brains.

    Be careful, I love you so!

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