Atomoxetine
A non-stimulant ADHD medication (Strattera) that selectively inhibits noradrenaline reuptake. It has no abuse potential and is not controlled, but works more slowly than stimulants and carries its own risks including cardiovascular effects, appetite suppression and a boxed warning for suicidal ideation in youth.
01 Overview
Atomoxetine is a selective noradrenaline reuptake inhibitor approved for ADHD in children and adults. Unlike stimulants, it is not a controlled substance and has negligible abuse potential, making it an option where diversion or dependence is a concern. Its full effect builds over several weeks rather than acting immediately.
Common adverse effects include reduced appetite, nausea, dry mouth, insomnia and modest increases in heart rate and blood pressure. It carries a boxed warning for increased suicidal ideation in children and adolescents, and rare hepatotoxicity has been reported.
02 Mechanism
Selectively inhibits the presynaptic noradrenaline transporter (NET), increasing noradrenaline and, in the prefrontal cortex, dopamine, without the dopaminergic reward effects of stimulants.
03 Dosing
| Tier | Dose | Route | Notes |
|---|---|---|---|
| Therapeutic (adult ADHD) | 40–100 mg/day | Oral | Start 40 mg/day, target ~80 mg/day; max 100 mg. Once or twice daily. |
04 Effects
| Effect | Magnitude | Evidence | |
|---|---|---|---|
| Improved attention and impulse controlReduces ADHD symptoms, though generally less than stimulants and with slower onset. | Moderate effect size in ADHD | Clinical | |
| No abuse potentialNot a controlled substance; suitable where diversion or dependence is a concern. | Clinical |
05 Side effects
| Effect | Severity | Frequency | Evidence | Countermeasures |
|---|---|---|---|---|
| Appetite suppression and nauseaReduced appetite, nausea and dry mouth are frequent, with some weight loss. | Moderate | Common | Clinical | |
| Cardiovascular stimulation and insomniaModest increases in heart rate and blood pressure; insomnia can occur. | Moderate | Common | Clinical | |
| Suicidal ideation in youthIncreased risk of suicidal thoughts in children and adolescents; carries a boxed warning. | Severe | Rare (boxed warning) | Clinical |