

How does Dyanavel XR work in your brain? We explain the mechanism of action in plain English, plus how long it takes to work and how it compares to similar meds.
Dyanavel XR increases the levels of two key brain chemicals — dopamine and norepinephrine — that help you focus, pay attention, and control impulses. If you have ADHD, these chemicals are often out of balance, and Dyanavel XR helps restore them to more effective levels.
In this guide, we'll explain exactly how Dyanavel XR works in your body, how long it takes to kick in, how long it lasts, and what makes it different from other ADHD medications.
To understand how Dyanavel XR works, it helps to understand what's happening in an ADHD brain.
Your brain cells communicate using chemical messengers called neurotransmitters. Two of the most important ones for focus and attention are:
In people with ADHD, these neurotransmitters don't work as efficiently. Think of it like a mail system where letters keep getting returned to the sender before the recipient can read them. The brain cells release dopamine and norepinephrine, but they get pulled back ("reuptaken") too quickly — before they can do their job.
Dyanavel XR contains Amphetamine, which works in two ways:
The result? More dopamine and norepinephrine available in your brain, which means better focus, improved impulse control, and reduced hyperactivity.
Scientifically, Amphetamine is classified as a non-catecholamine sympathomimetic amine with CNS stimulant activity. But in plain English: it turns up the volume on the brain chemicals that help you concentrate.
Most patients notice the effects of Dyanavel XR within 1 to 2 hours of taking it. However, it may take several days to a few weeks of consistent use to find the right dose and experience the full benefit.
If you don't notice improvement after the first dose, don't give up. Your doctor may need to adjust your dose. The typical range is 2.5 mg to 20 mg once daily, and most people need some fine-tuning to find their optimal dose.
Dyanavel XR is an extended-release formulation, which means it's designed to release Amphetamine gradually throughout the day. Unlike immediate-release stimulants that wear off in 4-6 hours, Dyanavel XR provides symptom control for a full day with just one morning dose.
The "XR" in the name stands for "extended release." The medication uses a special formulation technology to deliver some of the drug right away and the rest slowly over the course of the day. This means:
There are several other Amphetamine-based ADHD medications on the market. Here's how Dyanavel XR compares:
Adderall XR contains mixed Amphetamine salts (a combination of four different Amphetamine salts), while Dyanavel XR contains a single-entity Amphetamine. Both are extended-release. The biggest practical difference: Dyanavel XR is available as a liquid suspension, making it ideal for patients who can't swallow capsules. Adderall XR capsules can be opened and sprinkled on food, but it's not the same as a true liquid formulation.
Vyvanse (Lisdexamfetamine) is a prodrug — meaning it's inactive until your body converts it to Amphetamine. This gives Vyvanse a smoother onset and potentially lower abuse potential. Dyanavel XR is active Amphetamine released in an extended pattern. Both last throughout the day. Generic Vyvanse is now available, making it less expensive.
Adzenys XR-ODT is another Tris Pharma product. It's an orally disintegrating tablet (ODT) form of Amphetamine that's bioequivalent to Adderall XR. Dyanavel XR offers the liquid suspension option and its own tablet formulation.
Mydayis is a triple-bead mixed Amphetamine salt product that can provide up to 16 hours of coverage — longer than most extended-release stimulants. It may be a better fit for adults who need late-afternoon or evening symptom control.
Dyanavel XR occupies a specific niche in ADHD treatment:
Dyanavel XR works by increasing dopamine and norepinephrine in your brain — the two chemicals most closely linked to focus and attention. It starts working within a couple of hours and lasts throughout the day. Its liquid formulation makes it a standout choice for patients who need an alternative to pills and capsules.
If you're currently taking Dyanavel XR and having trouble finding it at your pharmacy, Medfinder can help you check which pharmacies have it in stock near you.
You focus on staying healthy. We'll handle the rest.
Try Medfinder Concierge FreeMedfinder's mission is to ensure every patient gets access to the medications they need. We believe this begins with trustworthy information. Our core values guide everything we do, including the standards that shape the accuracy, transparency, and quality of our content. We’re committed to delivering information that’s evidence-based, regularly updated, and easy to understand. For more details on our editorial process, see here.