Comparative Pharmacology
Head-to-head clinical analysis: ADDERALL XR 10 versus AMPHETAMINE SULFATE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ADDERALL XR 10 versus AMPHETAMINE SULFATE.
ADDERALL XR 10 vs AMPHETAMINE SULFATE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Adderall XR 10 contains a mixture of amphetamine salts, which are central nervous system stimulants. The dextroamphetamine and levoamphetamine components increase synaptic concentrations of dopamine and norepinephrine by inhibiting their reuptake and promoting their release from presynaptic terminals. This action leads to enhanced neurotransmission in the prefrontal cortex and other brain regions involved in attention and executive function.
Increases presynaptic release of dopamine and norepinephrine, blocks reuptake, and inhibits monoamine oxidase, resulting in CNS stimulation.
10 mg orally once daily in the morning; maximum dose 40 mg/day.
5–60 mg/day orally in 1–3 divided doses, initial 5 mg once or twice daily, increase by 5 mg weekly.
None Documented
None Documented
Dexamphetamine: 10-13 hours in adults (children: 6-8 hours); levoamphetamine: 13-16 hours; clinically, steady-state achieved in approximately 3 days, with twice-daily dosing maintaining therapeutic levels
Terminal elimination half-life: 10-13 hours in adults with acidic urine; prolonged to 16-34 hours with alkaline urine. In children, half-life is typically shorter (6-8 hours).
Renal (approximately 30-40% as unchanged amphetamine, remainder as metabolites, including deaminated and oxidized products; urinary pH-dependent elimination: acidic pH increases renal clearance, alkaline pH decreases renal clearance; negligible biliary/fecal elimination)
Renal excretion of unchanged amphetamine (approximately 30-40%) and its metabolites; urinary pH-dependent: acidic urine enhances elimination (up to 70% unchanged), alkaline urine reduces it. Minor biliary/fecal elimination (<10%).
Category C
Category D/X
CNS Stimulant
CNS Stimulant