Strattera vs Adderall
How atomoxetine and amphetamine compare for ADHD, a non-stimulant and a stimulant.
How they're similar
The two have more in common than the wellbutrin and adderall comparison, because both are ADHD medications.
- Both are FDA-approved for ADHD.
- Both improve attention and reduce hyperactivity and impulsivity.
- Both are taken regularly, not just as needed.
- Both can reduce appetite, affect sleep, and modestly raise heart rate and blood pressure.
The differences are in speed, legal status, how well they work, and how they feel across the day.
How they differ
One medication is a stimulant and the other is a non-stimulant, and that difference shapes everything else. The table below sums up the core points, with more detail underneath.
| Atomoxetine (Strattera) | Amphetamine (Adderall) | |
|---|---|---|
| Drug type | Non-stimulant | Stimulant |
| Speed of effect | Several weeks of daily use to reach full effect | Works the same day |
| Controlled substance | No | Yes, Schedule II |
| Typical effectiveness | Often more modest | Generally effective for more people |
| Daily pattern | Steady, all-day coverage without peaks | Dose-by-dose rise and fall through the day |
They work on different timelines. Adderall works fast, the same day it is taken. Atomoxetine takes several weeks of daily use to reach its full effect, more like an antidepressant than a fast-acting stimulant.
Their legal status differs. Adderall is a Schedule II controlled substance, the strictest category for a prescription medication, and it carries an FDA boxed warning about misuse, abuse, and addiction. A boxed warning is the FDA's most serious warning. Atomoxetine is not a controlled substance and has no abuse potential. It does carry a boxed warning about a possible increase in suicidal thoughts in children and adolescents.
They differ in effectiveness. Stimulants are generally effective for more people, and atomoxetine's effect is often more modest. That is a general pattern, not a rule for any one person.
Their daily pattern is different. Adderall has a dose-by-dose rise and fall through the day, with the effect building after a dose and easing later. Atomoxetine gives steady, all-day coverage without those peaks.
Side effects compared
Because both medications treat ADHD in part by affecting attention and arousal, they share a set of side effects. Both can reduce appetite, affect sleep, and modestly raise heart rate and blood pressure.
The risks that matter most are different. With Adderall, the main concern is its potential for misuse, abuse, and addiction, which is the basis for its controlled substance status. With atomoxetine, there is no abuse potential, and the boxed warning to know is about a possible increase in suicidal thoughts in children and adolescents. If a side effect is severe, or it is not improving, that is a conversation to have with a prescriber rather than a reason to stop on your own.
Sleep, weight, and sexual effects
For sleep and weight, the two are broadly similar. Both can affect sleep, and both can reduce appetite, which can lead to some weight loss, an effect worth watching especially in children.
Sexual effects are not a central feature of either medication in the way they are for many antidepressants. Atomoxetine can be associated with some sexual side effects in adults. Any troubling effect in this area is worth raising with a prescriber.
Why a clinician might choose one over the other
Both treat ADHD, so the choice comes down to fit.
A stimulant like Adderall is first-line for most people with ADHD. It works fast and tends to be effective for more people, so it is the usual starting point.
A clinician might choose atomoxetine when a stimulant is not suitable or not well tolerated. It is also the main choice when there are concerns about misuse, for example a history of substance use, since atomoxetine has no abuse potential. It can also be preferred when steady, all-day coverage without peaks is the goal. Atomoxetine is sometimes added to a stimulant rather than used instead of one.
The bottom line
Stimulants like Adderall are first-line for most people with ADHD and tend to be more effective. Atomoxetine is the main alternative for when a stimulant is not the right fit, whether because of side effects, concerns about misuse, or a preference for steady all-day coverage. The choice is made with a prescriber.
Sources
This guide draws on current prescribing information and public health references. It is reviewed for clinical accuracy and updated as guidance changes.
- U.S. Food and Drug Administration. Atomoxetine prescribing information.
- U.S. Food and Drug Administration. Amphetamine prescribing information.
- MedlinePlus, U.S. National Library of Medicine.
- National Institute of Mental Health. Mental health medications.
Managing a medication needs a prescriber
Any psychiatric medication has to be started and adjusted by a clinician who can follow you over time. If you don't have a prescriber, our guides section explains the options, including in-person care and telepsychiatry, and how to choose between them.
This guide is for general education. It is not medical advice and is not a substitute for evaluation, diagnosis, or treatment by a qualified clinician. Never start, stop, or change a medication without talking to your prescriber. If you are in crisis or thinking about harming yourself, call or text 988 in the U.S. to reach the Suicide and Crisis Lifeline.