Adderall
(amphetamine/dextroamphetamine immediate-release)
| Full Prescribing Information | DailyMed Drug Information |
Forms/Strengths
- Tablets: 5 mg, 7.5 mg, 10 mg, 12.5 mg, 15 mg, 20 mg, 30 mg
- These are mixed amphetamine salts (MAS) in a 3:1 ratio of dextroamphetamine to levoamphetamine salts for balanced effects on focus (dextro) and alertness (levo).
Dosing
- Age: ≥ 3 y/o
- Onset: 30-60 minutes
- Duration: 4-6 hours
- Considerations: Administer first dose upon awakening; additional doses at 4-6 hour intervals; may take with or without food (high-fat meals may delay absorption)
- Initial Dose:
- 3-5 y/o: 2.5 mg daily
- 6+ y/o: 5 mg 1-2 times daily
- Titration:
- 3-5 y/o: 2.5 mg weekly
- 6+ y/o: 5 mg weekly
- Max Dose:
- ≤50 kg: 40 mg/day
- >50 kg: 60 mg/day (Narcolepsy)
Quick Facts
- Increases synaptic dopamine and norepinephrine via presynaptic release, reuptake inhibition (DAT/NET), and VMAT2-mediated vesicular efflux
- Enhances focus, attention, impulse control, and wakefulness in ADHD and narcolepsy
- Common side effects: decreased appetite, insomnia, dry mouth, weight loss, increased heart rate/blood pressure
- Schedule II controlled substance with high abuse/misuse potential
- Black box warning: Abuse and dependence; sudden death and serious cardiovascular events reported
- May suppress growth in pediatrics; monitor height/weight
- 3:1 dextro:levo ratio balances cognitive focus (dextro) and peripheral alerting effects (levo)
Indications
- ADHD (ICD-10: F90.0, F90.1, F90.2, F90.8, F90.9)
- Narcolepsy (ICD-10: G47.419)
Off-Label Uses
- Treatment-resistant depression (ICD-10: F33.9): Adjunctive for low-energy symptoms
- Cognitive enhancement post-TBI (ICD-10: S06.0-S06.9): Improves attention and processing speed
- Augmentation in bipolar depression (ICD-10: F31.4): Short-term for anhedonia
How to Take
- Administer once or multiple times daily, as directed.
- Take with or without food; high-fat meals may delay absorption.
- If using the tablet, swallow whole; do not crush, chew, or split unless scored.
- Avoid dosing late in the day to prevent insomnia.
Side Effects
- Common:
- Cardiovascular: Tachycardia, hypertension, palpitations
- CNS: Insomnia, headache, irritability, anxiety, dizziness
- GI: Dry mouth, anorexia, weight loss, abdominal pain
- Other: Decreased appetite, euphoria
- Serious:
- Black box: Risk of abuse/dependence; sudden death, myocardial infarction, stroke in those with cardiac structural abnormalities
- Psychiatric: Psychosis, mania, aggression, suicidal ideation
- Cardiovascular: Cardiomyopathy, Raynaud's phenomenon
- Growth suppression in children; priapism; serotonin syndrome (with serotonergics); hypersensitivity reactions
Monitoring / Labs
- Baseline and periodic: Heart rate, blood pressure, weight, height (pediatrics)
- Psychiatric: Screen for bipolar, psychosis risk; monitor mood/behavior
- Cardiac: ECG if history of heart disease; assess for misuse/diversion
- Growth: Plot height/weight percentiles; consider drug holiday if suppression
- No routine labs required; assess renal/hepatic function if impaired
Education
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When to Call the Doctor:
- Severe mood changes, aggression, or suicidal thoughts.
- Chest pain, shortness of breath, or palpitations (cardiovascular concerns).
- Uncontrolled movements, tics, or worsening anxiety.
- Signs of circulatory issues (e.g., numbness, coldness, or color changes in fingers/toes).
- Unexplained weight loss or growth suppression in pediatric patients.
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Safety Tips:
- Monitor blood pressure and heart rate regularly, especially in patients with cardiovascular risk.
- Use caution in patients with history of anxiety, bipolar disorder, or psychosis, as symptoms may worsen.
- Avoid caffeine and other stimulants, which may increase side effects.
- Ensure adequate hydration and nutrition, as appetite suppression is common.
- Do not abruptly discontinue; tapering may be needed in long-term users.
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Parent Tips for Pediatric Patients:
- Encourage a high-calorie diet to offset appetite suppression.
- Monitor school performance and behavioral changes.
- Administer the first dose before school for optimal effect.
- Observe for sleep disturbances and adjust dosing schedule if needed.
- Keep communication open with teachers and caregivers regarding medication effects.
Additional Information
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Contraindications:
- Hypersensitivity to amphetamines or any formulation components.
- Use within 14 days of MAOI therapy (risk of hypertensive crisis).
- Symptomatic cardiovascular disease, moderate-to-severe hypertension, hyperthyroidism, glaucoma.
- History of substance use disorder, unless benefits outweigh risks.
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Pregnancy:
- Category C; use only if benefits outweigh risks.
- May cause neonatal withdrawal symptoms or low birth weight.
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Lactation:
- Excreted in breast milk; not recommended due to potential infant exposure.
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Drug Interactions:
- Serotonergic drugs (e.g., SSRIs, SNRIs, MAOIs) increase serotonin syndrome risk.
- Acidifying agents (e.g., ascorbic acid) may reduce drug absorption.
- Alkalinizing agents (e.g., sodium bicarbonate) may increase amphetamine levels.
- May potentiate hypertensive effects of certain medications (e.g., decongestants, beta-agonists).
References
- FDA Prescribing Information - Adderall Tablets, 2007, https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/011522s040lbl.pdf
- DailyMed - Mixed Salts of a Single Entity Amphetamine Product, 2023, https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=175e125c-8df5-484c-a5c0-4b61e05f75ba
- StatPearls - Dextroamphetamine-Amphetamine, 2023, https://www.ncbi.nlm.nih.gov/books/NBK507808/
- DrugBank - Amphetamine, 2024, https://go.drugbank.com/drugs/DB00182