ADHD Medication Comparison Chart: Stimulants vs Non-Stimulants (2026)
Last updated: March 2026 | Reviewed by Ronald Lee, MD, Board-Certified Psychiatrist
Choosing the right ADHD medication is one of the most common questions adults bring to their first psychiatric evaluation. This comprehensive comparison chart covers every FDA-approved ADHD medication currently available, organized by class, with key details on onset, duration, and common considerations.
This resource is designed for both patients researching their options and therapists who want to better understand what their clients may be prescribed.
Stimulant Medications
Stimulants remain the first-line treatment for ADHD in adults. They work by increasing dopamine and norepinephrine activity in the brain. There are two main classes: amphetamine-based and methylphenidate-based.
Amphetamine-Based Stimulants
| Medication | Brand Names | Release Type | Onset | Duration | Key Notes |
|---|---|---|---|---|---|
| Mixed Amphetamine Salts | Adderall | Immediate | 30-60 min | 4-6 hours | Most commonly prescribed stimulant. Generic widely available. |
| Mixed Amphetamine Salts XR | Adderall XR | Extended | 30-60 min | 10-12 hours | Once-daily dosing. Capsule can be opened and sprinkled. |
| Lisdexamfetamine | Vyvanse | Prodrug/Extended | 1-2 hours | 12-14 hours | Smoother onset/offset. Lower abuse potential (prodrug). Also FDA-approved for binge eating disorder. |
| Dextroamphetamine | Dexedrine, Zenzedi | Immediate | 30-60 min | 4-6 hours | Pure dextro isomer. Sometimes better tolerated than mixed salts. |
| Dextroamphetamine ER | Dexedrine Spansule | Extended | 30-60 min | 8-10 hours | Older extended-release formulation. |
| Amphetamine XR-ODT | Adzenys XR-ODT | Extended/Orally Disintegrating | 30-60 min | 10-12 hours | Dissolves on tongue. Good for patients who have difficulty swallowing pills. |
Methylphenidate-Based Stimulants
| Medication | Brand Names | Release Type | Onset | Duration | Key Notes |
|---|---|---|---|---|---|
| Methylphenidate IR | Ritalin, Methylin | Immediate | 20-30 min | 3-4 hours | Short-acting. Often used as initial trial or afternoon booster. |
| Methylphenidate ER | Concerta | Extended (OROS) | 30-60 min | 10-12 hours | Unique osmotic-release system. Cannot be crushed. Must swallow whole. |
| Methylphenidate ER | Ritalin LA | Extended (beads) | 30-60 min | 8-10 hours | Bead-based. Capsule can be opened and sprinkled. |
| Dexmethylphenidate | Focalin | Immediate | 20-30 min | 4-5 hours | Purified d-isomer of methylphenidate. May have fewer side effects. |
| Dexmethylphenidate XR | Focalin XR | Extended | 30-60 min | 10-12 hours | Once-daily. Capsule can be opened and sprinkled on food. |
| Methylphenidate Patch | Daytrana | Transdermal | 2 hours | Wear 9 hrs, effects last 12 | Patch form. Useful when oral medications cause GI issues. Can cause skin irritation. |
Non-Stimulant Medications
Non-stimulants are typically considered when stimulants cause intolerable side effects, when there is a history of substance use disorder, or when a patient has comorbid anxiety that worsens with stimulants. They generally take 2-6 weeks to reach full effect.
| Medication | Brand Name | Class | Onset | Duration | Key Notes |
|---|---|---|---|---|---|
| Atomoxetine | Strattera | SNRI (selective NE) | 2-4 weeks | 24 hours | Only FDA-approved non-stimulant for adult ADHD. No abuse potential. Can help comorbid anxiety. GI side effects common initially. |
| Viloxazine ER | Qelbree | SNRI (selective NE) | 1-2 weeks | 24 hours | Newer option (FDA-approved 2021 for adults). Well-tolerated. May help with mood symptoms. |
| Bupropion | Wellbutrin XL | NDRI | 2-4 weeks | 24 hours | Off-label for ADHD but widely used. Also treats depression. Avoid in seizure/eating disorder history. |
| Guanfacine ER | Intuniv | Alpha-2 agonist | 1-2 weeks | 24 hours | FDA-approved for children/adolescents. Used off-label in adults. Can lower blood pressure. Helpful for hyperactivity/impulsivity. |
| Clonidine ER | Kapvay | Alpha-2 agonist | 1-2 weeks | 12-24 hours | FDA-approved for children. Off-label in adults. Can cause sedation. Useful for insomnia related to ADHD. |
How to Choose: Key Decision Factors
When Stimulants Are Usually First Choice
- No history of substance use disorder
- No significant anxiety (or anxiety is secondary to untreated ADHD)
- Need for rapid symptom relief
- Primary symptoms are inattention, difficulty concentrating, or executive dysfunction
When Non-Stimulants May Be Preferred
- History of substance use disorder or addiction concerns
- Significant comorbid anxiety or tic disorders
- Intolerable stimulant side effects (insomnia, appetite loss, heart palpitations)
- Preference for 24-hour coverage without peaks and troughs
- Cardiovascular concerns
Amphetamine vs Methylphenidate: How to Decide
Research shows that approximately 50% of patients respond better to amphetamine-based medications and 50% respond better to methylphenidate-based medications. There is no reliable way to predict which class will work best for an individual. If the first medication tried does not work well or causes side effects, switching to the other class is a standard approach.
Common Side Effects Comparison
| Side Effect | Stimulants | Atomoxetine | Bupropion | Alpha-2 Agonists |
|---|---|---|---|---|
| Decreased appetite | Common | Moderate | Possible | Unlikely |
| Insomnia | Common | Uncommon | Possible | Unlikely (may cause drowsiness) |
| Increased heart rate | Common | Possible | Uncommon | May decrease HR |
| Dry mouth | Common | Moderate | Common | Common |
| Nausea | Possible | Common initially | Possible | Uncommon |
| Anxiety | Can worsen | Can improve | Can worsen | Can improve |
| Fatigue/Drowsiness | Unlikely | Possible | Unlikely | Common |
| Abuse potential | Yes (Schedule II) | No | No | No |
Important Considerations
Genetic testing: Pharmacogenomic testing (such as GeneSight) can sometimes help identify how your body metabolizes certain medications. However, it is not a crystal ball — clinical response and side effect monitoring remain the gold standard for finding the right medication.
Combination approaches: Some patients benefit from a stimulant during the day plus a non-stimulant for 24-hour coverage, or a long-acting stimulant supplemented by a short-acting “booster” in the afternoon. These decisions are best made collaboratively with your prescribing psychiatrist.
Therapy alongside medication: Medication addresses the neurobiological aspects of ADHD, but cognitive-behavioral therapy (CBT) and coaching can help build organizational skills, manage time, and address emotional patterns that medication alone does not fix. We strongly encourage collaborative care with a therapist.
Next Steps
If you are an adult in Massachusetts considering ADHD medication or looking to optimize your current regimen, Dr. Ronald Lee provides comprehensive ADHD evaluations and medication management via telepsychiatry.
- Phone: (617) 841-3620
- Website: luminousvitalitybh.com
- Telepsychiatry: Available to adults across Massachusetts via secure video
This chart is for educational purposes only and does not constitute medical advice. Medication decisions should be made in consultation with a qualified prescribing provider who can evaluate your individual health history, symptoms, and goals.
For Therapists
If you are a therapist and would like a printable version of this chart for your office, or if you would like to discuss a collaborative care arrangement for your clients who may benefit from psychiatric evaluation, please learn about our referral partnership or contact us directly.
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