From the Guidelines
Non-stimulant medications, such as atomoxetine, guanfacine, and clonidine, are effective alternatives for treating ADHD in children when stimulants are ineffective or cause intolerable side effects, with atomoxetine being the most established option, typically started at 0.5 mg/kg/day and titrated to 1.2-1.4 mg/kg/day with a maximum of 100 mg daily 1.
Key Considerations
- Atomoxetine may take 4-6 weeks to see full benefits, while alpha-2 agonists like guanfacine ER and clonidine ER have a faster onset of action, typically within 2-4 weeks 1.
- Viloxazine is a newer option started at 100 mg daily and titrated up to 100-400 mg daily based on age and response, but its use is less established compared to atomoxetine and alpha-2 agonists 1.
- These medications work differently than stimulants, with atomoxetine and viloxazine affecting norepinephrine reuptake, while alpha-2 agonists modulate noradrenergic activity in the prefrontal cortex 1.
Monitoring and Follow-up
- Regular monitoring of blood pressure, heart rate, growth, and potential mood changes is essential, with follow-up appointments recommended every 3-6 months after stabilization 1.
- Common side effects include initial sedation, headaches, and stomach upset, and clinicians should be aware of the potential for increased suicidal thoughts with atomoxetine, particularly in the initial treatment phase 1.
Clinical Decision-Making
- The choice of non-stimulant medication should be individualized based on the patient's specific needs, comorbidities, and preferences, with consideration of the potential benefits and limitations of each medication 1.
- Clinicians should be aware of the potential for drug interactions and adjust the treatment regimen accordingly, with careful monitoring of the patient's response to treatment and adjustment of the medication as needed 1.
From the FDA Drug Label
The effectiveness of atomoxetine hydrochloride in the treatment of ADHD was established in 4 randomized, double-blind, placebo-controlled studies of pediatric patients (ages 6 to 18) Approximately one-third of the patients met DSM-IV criteria for inattentive subtype and two-thirds met criteria for both inattentive and hyperactive/impulsive subtypes Signs and symptoms of ADHD were evaluated by a comparison of mean change from baseline to endpoint for atomoxetine hydrochloride- and placebo-treated patients using an intent-to-treat analysis of the primary outcome measure, the investigator administered and scored ADHD Rating Scale-IV-Parent Version (ADHDRS) total score including hyperactive/impulsive and inattentive subscales
Non-stimulant medication for ADHD children has been studied in several clinical trials, as shown in the text.
- Atomoxetine hydrochloride was found to be effective in the treatment of ADHD in pediatric patients (ages 6 to 18) in 4 randomized, double-blind, placebo-controlled studies.
- The ADHDRS scale was used to evaluate signs and symptoms of ADHD.
- The results of these studies support the use of atomoxetine hydrochloride as a non-stimulant medication for the treatment of ADHD in children 2.
From the Research
Non-Stimulant Medications for ADHD in Children
- Non-stimulant medications, such as atomoxetine, guanfacine, and clonidine, have been shown to be effective in treating ADHD symptoms in children 3, 4, 5.
- Atomoxetine is the only FDA-approved non-stimulant medication for ADHD and has been found to be efficacious for the entire spectrum of ADHD symptoms in both children and adults 4, 6.
- Other non-stimulant medications, such as bupropion and tricyclic antidepressants, have also been used to treat ADHD, but their efficacy and safety have not been as extensively studied 4, 5.
Efficacy and Safety of Non-Stimulant Medications
- Clinical trial data indicate that atomoxetine is safe and well-tolerated for the treatment of ADHD, with mainly mild to moderate and transient adverse events reported 6.
- The efficacy and safety of non-stimulant medications, such as clonidine and guanfacine, have also been established, but their use is limited to children and adolescents in the US 7.
- Recent advances in pharmacological management of ADHD have led to the development of new non-stimulant medications, such as viloxazine extended-release and centanafadine, which are currently under investigation 7.
Treatment Decisions and Future Research
- Treatment decisions for ADHD should take into account the individual patient's response to medication, tolerability, and medical history 3.
- Further research is needed to understand the mechanisms of action of non-stimulant medications and their effects on commonly occurring comorbidities 3, 7.
- The development of new non-stimulant medications may offer hope for patients who need medication alternatives, and more research is needed to establish their efficacy and safety 7.