Dyanavel XR is a prescription stimulant medication used to treat attention deficit hyperactivity disorder (ADHD). It contains amphetamine in an extended-release formulation, meaning it releases the active drug gradually over the course of a day rather than all at once. What makes it unusual among ADHD medications is that it comes as a liquid suspension, not just a pill, which makes it a practical option for children and anyone who has difficulty swallowing tablets.
How Dyanavel XR Works
The active ingredient is amphetamine, a central nervous system stimulant that increases levels of certain chemical messengers in the brain involved in focus, attention, and impulse control. Dyanavel XR uses a specific 3.2:1 ratio of two forms of amphetamine (d-amphetamine and l-amphetamine), which is slightly different from the 3:1 ratio found in some other well-known ADHD medications like Adderall XR. This ratio influences how the medication feels and how long its effects last.
The extended-release mechanism relies on an ion exchange resin. Part of the amphetamine is bound to a resin called sodium polystyrene sulfonate through an ionic bond, then coated with a special polymer. When you take the medication, some of the drug releases immediately while the resin-bound portion releases slowly over hours. After the drug detaches from the resin, the resin itself passes harmlessly through the digestive system. The formulation contains both immediate-release and extended-release components, so it starts working relatively quickly while maintaining its effect throughout the day.
Available Forms and Strengths
Dyanavel XR comes in two forms. The extended-release oral suspension is a liquid containing 2.5 mg of amphetamine per milliliter. This is especially useful for younger children, people who can’t swallow pills, or situations where precise dose adjustments in small increments are needed. The liquid form allows a prescriber to fine-tune the dose by fractions of a milligram simply by adjusting the volume.
Extended-release tablets are also available in 5 mg, 10 mg, 15 mg, and 20 mg strengths. The 5 mg tablet is functionally scored, meaning it can be split in half for a 2.5 mg dose when needed.
Common Side Effects
Side effects vary somewhat by age group, based on clinical trial data reported to the FDA. In children ages 6 to 12, the most common reactions (occurring in at least 2% of patients and more often than with a placebo) were:
- Loss of appetite
- Insomnia
- Abdominal pain
- Emotional lability (mood swings or heightened emotional reactions)
- Vomiting
- Nervousness
- Nausea
- Fever
In teenagers ages 13 to 17, the most frequently reported side effects (at least 5% and higher than placebo) were loss of appetite, insomnia, abdominal pain, weight loss, and nervousness. The appetite suppression and weight loss tend to be more prominent concerns in this older age group. These side effects are consistent with what you’d expect from any amphetamine-based ADHD medication and often lessen after the first few weeks of treatment.
How It Compares to Other ADHD Stimulants
Dyanavel XR belongs to the same amphetamine family as medications like Adderall XR and Vyvanse, but it fills a specific niche. Its primary advantage is the liquid formulation, which was the first extended-release amphetamine suspension on the U.S. market. For a child who gags on capsules or a patient who needs dose adjustments smaller than what pill sizes allow, this can be a meaningful difference in daily life.
The 3.2:1 ratio of d- to l-amphetamine also sets it apart slightly from mixed amphetamine salts products, which use a 3:1 ratio. D-amphetamine is generally considered more potent for focus and attention, so the slightly higher proportion may produce subtle differences in how the medication feels, though individual responses vary widely.
Practical Tips for the Liquid Form
If you or your child uses the oral suspension, you need to shake the bottle vigorously (up and down) before every dose. Because the drug is bound to resin particles suspended in liquid, skipping this step means the dose could be uneven, with too little or too much medication in any given pour.
Store the bottle at room temperature, ideally between 68°F and 77°F. Brief exposure to temperatures between 59°F and 86°F is acceptable, but don’t leave it in a hot car or freeze it. Use the measuring device that comes with the prescription rather than a kitchen spoon, since accuracy matters when dosing a controlled substance in liquid form.
Who Dyanavel XR Is Designed For
Dyanavel XR is FDA-approved for the treatment of ADHD in pediatric patients. It’s particularly well suited for children who cannot swallow capsules or tablets, those who need very precise dosing flexibility, or families who prefer a liquid option over opening capsules and sprinkling beads on food (a workaround sometimes used with other extended-release stimulants). The tablet form extends its usefulness to older children and teens who are comfortable swallowing pills but benefit from the specific amphetamine ratio or available dose strengths.
Like all amphetamine-based medications, Dyanavel XR is a Schedule II controlled substance, meaning it carries a recognized potential for misuse and dependence. Prescriptions typically cannot be called in by phone and often require a new written prescription each month, depending on state regulations.