FDA-Approved Medications for Anxiety in Children and Adolescents
Only two medications have FDA approval for anxiety disorders in pediatric patients: fluoxetine for OCD in children aged 7 and older, and fluvoxamine for OCD in children aged 8 and older. 1, 2
FDA-Approved Indications by Specific Disorder and Age
Obsessive-Compulsive Disorder (OCD)
- Fluoxetine (Prozac): FDA-approved for OCD in children and adolescents, with efficacy established in a 13-week trial 1
- Fluvoxamine: FDA-approved for OCD in pediatric patients aged 8-17 years, with efficacy demonstrated in a 10-week multicenter placebo-controlled study of 120 outpatients 2
Other Anxiety Disorders
- No FDA-approved medications exist for generalized anxiety disorder, social anxiety disorder, panic disorder, separation anxiety disorder, or specific phobias in children and adolescents under age 18 3
- Duloxetine has FDA approval for generalized anxiety disorder starting at age 7, though this represents the only non-OCD anxiety indication for pediatric patients 3
Critical Distinction: FDA Approval vs. Evidence-Based Practice
Despite limited FDA approvals, SSRIs as a class have substantial empirical support for treating various anxiety disorders in children ages 6-18 years and are recommended as first-line pharmacotherapy by the American Academy of Child and Adolescent Psychiatry. 3, 4, 5
Off-Label SSRI Use with Strong Evidence
- Sertraline, escitalopram, and fluoxetine are supported as first-line agents for anxiety disorders beyond OCD, despite lacking specific FDA approval for these indications in pediatric populations 6, 7
- Fluvoxamine demonstrated efficacy not only for OCD but also for social phobia, separation anxiety disorder, and generalized anxiety disorder in an 8-week controlled trial of 128 pediatric patients (up to 250-300 mg/day) 8
Dosing Specifications for FDA-Approved Medications
Fluoxetine for Pediatric OCD
- Adolescents and higher-weight children: Start 10 mg/day, increase to 20 mg/day after 2 weeks, with a target range of 20-60 mg/day 1
- Lower-weight children: Start 10 mg/day, with a target range of 20-30 mg/day 1
- Maximum dose should not exceed 60 mg/day in pediatric patients (80 mg/day in adults) 1
Fluvoxamine for Pediatric OCD
- Children aged 8-11 years: Steady-state plasma concentrations are 2-3 times higher than in adolescents, requiring a maximum dose of 200 mg/day 2, 8
- Adolescents aged 12-17 years: Absorption similar to adults, allowing maximum doses up to 300 mg/day 2, 8
- Dosing range in controlled trials: 50-300 mg/day over 8-16 weeks 8
Optimal Treatment Algorithm
First-Line Approach
Cognitive-behavioral therapy (CBT) should be considered first-line treatment for mild to moderate anxiety, with SSRIs reserved for more severe presentations or when quality CBT is unavailable. 3
When Medication is Indicated
- Combination treatment (CBT + SSRI) is more effective than either treatment alone for anxiety in children and adolescents, with superior outcomes demonstrated in the Child-Adolescent Anxiety Multimodal Study 3, 6
- A structured course of 12-20 CBT sessions targeting anxiety-specific cognitive distortions and exposure techniques is recommended 6
Mandatory Safety Monitoring
Suicidal Ideation Risk
- All SSRIs carry a black box warning for suicidal ideation through age 24, with a pooled absolute risk of 1% with SSRIs versus 0.2% with placebo (NNH = 143) 3, 6
- Close monitoring is mandatory in the first months of treatment and after any dose changes 3, 6
Common Side Effects
- Nausea, headache, insomnia, nervousness, and initial anxiety/agitation typically emerge within the first few weeks and resolve with continued treatment 6, 7
- Decreased appetite and weight loss require regular monitoring of weight and growth if long-term SSRI treatment continues 2
Medications to Avoid
Benzodiazepines
Benzodiazepines are not FDA-approved for anxiety disorders in children and may cause disinhibition in younger children. 3
- The American Academy of Child and Adolescent Psychiatry does not recommend benzodiazepines for chronic anxiety management in adolescents due to concerns about dependence and potential worsening of long-term outcomes 6
Paroxetine and Specific SSRIs
- Paroxetine and fluvoxamine should be avoided as first-line agents due to higher discontinuation syndrome risk and potentially increased suicidal thinking compared to other SSRIs 6
Expected Response Timeline
- Statistically significant improvement may begin by week 2 6, 7
- Clinically significant improvement expected by week 6 6, 7
- Maximal therapeutic benefit achieved by week 12 or later 6, 7
- Treatment should not be abandoned before 12 weeks, as full response requires patience due to the logarithmic response curve of SSRIs 6
Treatment Duration
Continuing SSRI therapy for at least 9-12 months after achieving remission is recommended to prevent relapse. 6