Comparative Pharmacology
Head-to-head clinical analysis: DYANAVEL XR versus DYANAVEL XR 15.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DYANAVEL XR versus DYANAVEL XR 15.
DYANAVEL XR vs DYANAVEL XR 15
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Dyanavel XR is a central nervous system stimulant that increases the levels of dopamine and norepinephrine in the synaptic cleft by inhibiting their reuptake and increasing their release, thereby enhancing neurotransmission in the brain regions involved in attention and impulse control.
Dyanavel XR contains amphetamine, which is a central nervous system stimulant that increases synaptic concentrations of dopamine and norepinephrine by inhibiting their reuptake and promoting their release from presynaptic terminals.
Initial dose: 5 mg orally once daily in the morning. Maximum dose: 20 mg once daily. May increase by 5–10 mg weekly based on tolerability and response.
1-3 capsules orally once daily in the morning. Each capsule contains 15 mg of amphetamine (equivalent to 15 mg dextroamphetamine/amphetamine).
None Documented
None Documented
Mean terminal elimination half-life is approximately 8-10 hours for d-amphetamine and 12-14 hours for l-amphetamine; the extended-release formulation maintains therapeutic concentrations for 12-14 hours.
Terminal elimination half-life: amphetamine (d-isomer) 9-11 hours, l-isomer 11-14 hours; allows for once-daily dosing in extended-release formulation
Approximately 30-50% of a dose is excreted unchanged in urine; remainder as metabolites (primarily hippuric acid) via renal elimination. Fecal excretion is minimal.
Renal (80-90% as unchanged drug and metabolites, primarily dehydro-amphetamine); fecal excretion minimal (<5%)
Category C
Category C
CNS Stimulant
CNS Stimulant