Strattera Dose Increase from 40mg to 60mg
Yes, you can increase Strattera from 40mg to 60mg in the morning, as this falls within the standard FDA-approved titration protocol and remains well below the maximum recommended dose of 100mg daily. 1
FDA-Approved Dosing Protocol
The FDA label provides clear guidance for dose escalation in patients over 70 kg body weight and adults 1:
- Initial dose: 40 mg daily
- Target dose: 80 mg daily (reached after a minimum of 3 days at initial dose)
- Maximum dose: 100 mg daily (can be increased after 2-4 additional weeks if optimal response not achieved)
- Administration: Can be given as a single morning dose or divided between morning and late afternoon/early evening 1
Your proposed increase to 60mg represents an intermediate step that is both safe and appropriate, though the standard protocol typically moves directly from 40mg to 80mg after at least 3 days 1.
Critical Timing Considerations
You must remain at your target dose for 4-6 weeks before judging efficacy, as atomoxetine has a delayed onset of action compared to stimulants 2. Treatment effects typically require:
- 6-12 weeks for full symptom improvement with atomoxetine 2
- Initial effects may be observed earlier, but continued improvement occurs throughout treatment 3
Real-world data show that suboptimal dosing (averaging ~60mg in adults versus the recommended 80mg target) is associated with poor patient outcomes 4. The evidence strongly supports reaching and maintaining adequate doses for sufficient duration 4.
Dose-Response Evidence
Research demonstrates a clear dose-response relationship 5:
- 0.5 mg/kg/day: Intermediate efficacy between placebo and higher doses
- 1.2 mg/kg/day: Optimal efficacy (approximately 80mg for a 70kg adult)
- 1.8 mg/kg/day: No additional benefit over 1.2 mg/kg/day 5
Studies attempting doses beyond standard recommendations (up to 2.4-3.0 mg/kg/day) showed no systematic advantage to exceeding current guidelines 6. This confirms that the FDA maximum of 100mg daily is appropriate for most patients 6.
Important Safety Monitoring
During dose increases, monitor closely for 2:
- Suicidal ideation (especially in children/adolescents during first months or dose changes)
- Cardiovascular effects (blood pressure, heart rate)
- Common adverse effects: Nausea, vomiting, fatigue, decreased appetite, abdominal pain, somnolence 2
Approximately 7% of the population are CYP2D6 poor metabolizers with significantly higher plasma levels and longer half-lives, leading to increased adverse effects 2. If you experience excessive side effects, consider CYP2D6 testing 2.
Dosing Adjustments for Special Circumstances
If taking CYP2D6 inhibitors (paroxetine, fluoxetine, quinidine), the standard protocol requires 1:
- Starting at 40mg daily
- Only increasing to 80mg if symptoms fail to improve after 4 weeks AND initial dose is well tolerated
Morning versus evening dosing: While both are effective, morning dosing showed superior efficacy on some measures, though evening dosing demonstrated better tolerability with fewer adverse events 7. Single morning dosing provides 24-hour symptom coverage including evening and early morning hours 3, 7.
Clinical Bottom Line
Your 60mg morning dose is safe and appropriate, but recognize this is below the 80mg target dose where optimal efficacy is typically achieved 1, 4, 5. Plan to potentially increase to 80mg after evaluating response at 60mg for at least 3 days (per FDA protocol) or up to 4 weeks (for full efficacy assessment) 1, 4.