Medically reviewed by Austin Ulrich, PharmD
Key Takeaways
- Lisdexamfetamine (Vyvanse, Arynta) is a stimulant that is used to treat attention-deficit hyperactivity disorder (ADHD) and binge eating disorder (BED).
- The FDA has approved generic lisdexamfetamine capsules and chewable tablets, offering a significantly more affordable alternative to brand-name Vyvanse.
- Unlike some other stimulants, this medication is a “prodrug,” meaning it remains inactive until the body digests it, which may result in a smoother onset and longer duration of action.
- Prescription discount programs like the Super+ RX coupon can help you save money on lisdexamfetamine and other prescriptions.
Estimated Price Comparison
Lisdexamfetamine is available as a lower-cost generic in oral capsule and chewable tablet forms, offering a less expensive option to brand-name Vyvanse. The table below compares prices between the generic and brand forms, including pricing using a Super+ RX discount coupon. A new brand-name oral liquid formulation of lisdexamfetamine, Arynta, has been approved by the FDA as of 2025.
| Medication | Estimated Average Retail Price | Estimated Super+ RX Member Price |
| Lisdexamfetamine (Generic) | ~$120.00 – $220.00 | ~$60.00 – $120.00 |
| Vyvanse (Brand) | ~$700.00 – $750.00 | ~$380.00 – $420.00 |
What Is Lisdexamfetamine (Vyvanse)?
Lisdexamfetamine dimesylate is a central nervous system (CNS) stimulant. It is the active ingredient in the brand-name medication Vyvanse. This medication is FDA-approved for two primary uses: the treatment of attention-deficit hyperactivity disorder (ADHD) in adults and children 6 years and older, and the treatment of moderate to severe binge eating disorder (BED) in adults.
While it belongs to the same class of medications as other well-known stimulants, lisdexamfetamine is chemically distinct because it is a “prodrug.” This means the medication is biologically inactive when swallowed. It only becomes active after it has been absorbed by the gastrointestinal tract and converted by the body’s natural enzymes (proteins) into dextroamphetamine.
How It Works in the Body
For managing ADHD, the medication works by altering the balance of certain natural chemicals in the brain, specifically norepinephrine and dopamine. These neurotransmitters play a vital role in attention, focus, and impulse control. By increasing the levels of these chemicals, the medication helps improve attention span, reduce impulsivity, and manage hyperactivity.
For treating BED, the exact mechanism is not fully established, but the increase in dopamine and norepinephrine is believed to help regulate the impulse to binge eat. It is important to note that this medication is not approved for weight loss or obesity treatment, and using it for these purposes carries significant health risks.
Because the medication relies on the body’s digestive enzymes to become active, the effects typically last significantly longer than older stimulant formulations—often up to 13 or 14 hours. This extended release profile is designed to provide consistent symptom coverage throughout the day without the need for multiple doses.
How to Save on Your Lisdexamfetamine Prescription
Here are several practical ways you can save money if you need a prescription for lisdexamfetamine — whether you have insurance or not:
- Use a prescription discount card or coupon like Super+ RX: The Super+ RX coupon uncovers discounts to help lower out-of-pocket costs for lisdexamfetamine. Whether it’s lisdexamfetamine or another medication, we want to help you save—because your well-being comes first.
- Check multiple pharmacies — cash prices can vary. Pharmacies in the same area sometimes charge different prices for the same medication. Comparing cash prices among pharmacies can help you find the cheapest option. Search for your prescription on Super.com/rx, compare prices across pharmacies, and find discounts near you.
- Consider asking for the generic form, not the brand-name form. The generic version of lisdexamfetamine is often much cheaper than the brand-name version, Vyvanse, and works the same.
What you can do before you go to the pharmacy:
- Use a discount program like the Super+ RX coupon — print it or bring it on your phone — and ask the pharmacist or cashier to apply it to your prescription.
- Compare at least two or three pharmacies on Super.com/rx to see who offers the lowest price.
- If you are uninsured or if you have a high copay, ask your healthcare team about patient-assistance programs or reduced-cost clinics in your area.
Ready to save on lisdexamfetamine? Compare prices for lisdexamfetamine at pharmacies near you and start lowering your medication costs.
Vyvanse vs. Adderall: Understanding the Differences
You may consider lisdexamfetamine alongside Adderall (amphetamine/dextroamphetamine salts), as both are commonly-used stimulant medications for treating ADHD. While they are similar, there are distinct structural and functional differences that may make one more suitable than the other.
Mechanism of Action
The primary difference lies in how the medications are delivered to the system.
- Adderall contains free amphetamine salts. When taken, it begins working almost immediately as it enters the bloodstream. This can lead to a rapid onset of focus, but for some, it may also cause a more rapid wearing off of.
- Lisdexamfetamine is bound to an amino acid called lysine. The body must break this bond before the medication becomes active. This biological rate-limiting step can result in a more gradual onset and a smoother decline.
Duration of Effect
Because of the prodrug mechanism, lisdexamfetamine is a long-acting medication. It is typically taken once a day in the morning and is designed to last roughly 10 to 14 hours.
Adderall comes in two forms:
- Immediate Release (IR): Lasts 4 to 6 hours and is often taken multiple times a day.
- Extended Release (XR): Lasts 10 to 12 hours.
People who require flexibility—such as needing medication only for a few hours of work—might prefer the immediate-release options associated with Adderall. Those who need all-day symptom management may prefer the consistency of lisdexamfetamine or extended-release Adderall.
Abuse Potential
Both lisdexamfetamine and Adderall are classified as Schedule II controlled substances due to the risk of misuse and dependence. While specific risks may vary between the two medications, you should be careful to follow your healthcare professional’s instructions to take your prescribed medication safely..
Dosage and Usage Considerations
Proper adherence to your prescribed dosage is critical for safety and efficacy. Lisdexamfetamine is available in various strengths, ranging from 10 mg to 70 mg in capsules and 10 mg to 60 mg in chewable tablets.
Timing and Consistency
Healthcare professionals typically recommend taking lisdexamfetamine first thing in the morning. Because the effects can last up to 14 hours, taking the medication in the afternoon can lead to insomnia or disrupted sleep patterns.
It can be taken with or without food. However, consistency is key. Taking it the same way every day helps the body maintain steady levels of the medication.
Administration Options
If you have difficulty swallowing pills, lisdexamfetamine capsules can be opened, and the powder inside can be mixed into water, orange juice, or yogurt.
- The mixture must be consumed immediately; it cannot be stored for later use.
- The user should stir the mixture thoroughly and drink or eat the entire amount to ensure the full dose is received.
Lisdexamfetamine also comes as chewable tablets, another option that may be helpful for those who have trouble swallowing pills.
Missed Doses
If a dose is missed early in the morning, it can be taken as soon as remembered. However, if it is already afternoon, skip the missed dose and wait until the next morning to avoid trouble sleeping. Do not double the dose to make up for a missed one.
Potential Side Effects and Interactions
Like all prescription medications, lisdexamfetamine carries the risk of side effects. Being aware of these can help you distinguish between mild side effects and serious reactions that require medical attention.
Common Side Effects
Most side effects are mild and may subside as the body adjusts to the medication. These include:
- Decreased appetite: This is very common. Monitor your weight to ensure you are maintaining healthy nutrition levels.
- Dry mouth: Staying hydrated and using sugar-free lozenges can help manage this.
- Insomnia: Usually caused by taking the medication too late in the day.
- Anxiety or Jitters: A feeling of restlessness may occur, especially when starting treatment or increasing dosage.
- Gastrointestinal issues: Mild nausea, diarrhea, or constipation.
Serious Warnings
While less common, some side effects require immediate consultation with a healthcare professional:
- Cardiovascular (heart) issues: Stimulants increase heart rate and blood pressure. People with pre-existing heart conditions should discuss these risks thoroughly before starting treatment. Call for help immediately if experiencing chest pain, shortness of breath, or fainting.
- Circulation problems: Symptoms may include numbness, pain, or color changes in fingers or toes.
- Mental health changes: New or worsening psychosis (hearing voices, believing things that are not true) or mania.
Drug Interactions
It is vital to provide a full list of medications and supplements to the prescribing healthcare professional.
- Monoamine Oxidase Inhibitors (MAOIs): Taking lisdexamfetamine with or within 14 days of stopping a MAOI can cause a fatal hypertensive crisis (extremely high blood pressure) or serotonin syndrome (too much serotonin), which are medical emergencies.
- Acidifying/Alkalizing Agents: certain substances can change how the body absorbs the drug. For example, Vitamin C (ascorbic acid) or fruit juices can lower the amount of medication the body absorbs, while antacids (sodium bicarbonate) can increase absorption, potentially leading to side effects. Your prescriber will help determine the right dose for you if you consume large amounts of these substances.
Frequently Asked Questions
Is lisdexamfetamine a controlled substance?
Yes, it is classified by the DEA as a Schedule II controlled substance. This means it has a recognized medical use but also a high potential for misuse and dependence. Prescriptions for Schedule II medications cannot be refilled automatically; a healthcare professional must issue a new prescription each time.
Is there a difference between the capsule and the chewable tablet?
Both forms contain the same active ingredient and work the same way in the body. The chewable tablet is an alternative form for those who cannot swallow capsules. They are available in similar dosage strengths.
Does insurance cover lisdexamfetamine?
Coverage varies significantly by plan. Brand-name Vyvanse may be placed on higher “tiers” insurance formularies, meaning it requires a higher copay or prior authorization. The generic version is more likely to be on a lower tier with better coverage. However, those with high deductibles may still find that using a discount program like Super+ RX offers a lower price than their insurance copay.
Does this medication make you feel “high”?
When taken as prescribed for ADHD or BED, the medication is not intended to produce a “high.” Instead, it is designed to help the you feel “normal,” focused, and calm. If you experience euphoria or excessive energy, the dosage may need to be adjusted by your healthcare professional.
Can I stop taking it suddenly?
While it is not as dangerous to stop suddenly in the same way stopping other medications might be, withdrawal symptoms are possible. Sudden stopping after long-term use may lead to extreme fatigue and depression, insomnia, increased appetite, and agitation. It is best to plan any discontinuation with a healthcare professional.
Ready to save on lisdexamfetamine? Compare prices for lisdexamfetamine at pharmacies near you and start lowering your medication costs.
References
Arynta. Prescribing information. Azurity Pharmaceuticals, Inc., 2025. Accessed February 26, 2026. https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/219847s000lbl.pdf
Goodman DW. Lisdexamfetamine dimesylate (vyvanse), a prodrug stimulant for attention-deficit/hyperactivity disorder. P T. 2010;35(5):273-287.
Hussain LS, Reddy V, Maani CV. Physiology, noradrenergic synapse. StatPearls. May 1, 2023. Accessed February 26, 2026. https://www.ncbi.nlm.nih.gov/books/NBK540977/
Kenny BJ, Preuss CV, Zito PM. Controlled substance schedules. StatPearls. June 26, 2023. Accessed February 26, 2026. https://www.ncbi.nlm.nih.gov/books/NBK538457/
Lisdexamfetamine dimesylate capsule. Prescribing information. SpecGx LLC, 2025. Accessed February 26, 2026. https://nctr-crs.fda.gov/fdalabel/services/spl/set-ids/806a1c15-0842-4787-b2ad-09a21fd96b37/spl-doc
Lisdexamfetamine dimesylate tablet, chewable. Prescribing information. SpecGx LLC, 2025. Accessed February 26, 2026. https://nctr-crs.fda.gov/fdalabel/services/spl/set-ids/3a79b2ab-4131-4978-99a0-0119df57d5fe/spl-doc
Patel P, Marwaha R, Molla M. Dextroamphetamine-amphetamine. StatPearls. April 6, 2025. Accessed February 26, 2026. https://www.ncbi.nlm.nih.gov/books/NBK507808/
Sonne J, Goyal A, Patel P. Dopamine. StatPearls. December 13, 2025. Accessed February 26, 2026. https://www.ncbi.nlm.nih.gov/books/NBK535451/
Disclaimer:
Generative AI was used in the development of this content. All information in this article has been reviewed by our highly-trained clinicians. Under applicable law, pharmacies may decline to accept discount coupons for controlled substances at their own discretion. Discounts on controlled substances are not guaranteed.
We do not provide medical advice. Please, consult a physician.
