Comparative Pharmacology
Head-to-head clinical analysis: ADDERALL XR 5 versus ADZENYS ER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ADDERALL XR 5 versus ADZENYS ER.
ADDERALL XR 5 vs ADZENYS ER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Adderall XR 5 contains a combination of amphetamine and dextroamphetamine, which are central nervous system stimulants. They increase the levels of dopamine and norepinephrine in the synaptic cleft by inhibiting their reuptake and promoting their release from presynaptic neurons.
ADZENYS ER is a central nervous system (CNS) stimulant that blocks the reuptake of norepinephrine and dopamine into presynaptic neurons, increasing their concentrations in the synaptic cleft.
20 mg orally once daily in the morning
Adults: Initial 5-10 mg orally once daily; titrate in 5-10 mg increments weekly to optimal response; max 60 mg/day.
None Documented
None Documented
d-Amphetamine: 10-13 hours (adults), 11-14 hours (children); l-Amphetamine: 13-15 hours (adults). The prolonged terminal half-life of the extended-release formulation supports once-daily dosing.
6-8 hours in adults; in children 3-6 hours, requiring twice-daily dosing for sustained effect
Renal (approximately 90% as unchanged drug and metabolites, with 30-40% as unchanged amphetamine), fecal (minimal, <5%)
70% renal (30% unchanged, 40% as metabolites), 30% fecal/biliary
Category C
Category C
CNS Stimulant
CNS Stimulant