Recommended Treatment for Depression
For adults with depression, the recommended first-line treatment includes cognitive behavioral therapy (CBT) or other evidence-based psychotherapies, with selective serotonin reuptake inhibitors (SSRIs) as the preferred pharmacological option when medication is indicated. 1
Psychotherapy Options
- Cognitive behavioral therapy (CBT), behavioral activation, problem-solving therapy, interpersonal therapy, brief psychodynamic therapy, and mindfulness-based psychotherapy all show medium-sized effects in improving depression symptoms compared to usual care 2
- For patients with both depression and anxiety symptoms, treatment of depressive symptoms should be prioritized, or a unified protocol combining CBT treatments for both conditions may be used 1
- Regular assessment of treatment response is recommended when providing psychological treatment (e.g., at pretreatment, 4 weeks, 8 weeks, and end of treatment) 1
Pharmacotherapy Options
First-line Medications
- SSRIs are recommended as first-line pharmacological treatment with modest superiority over placebo (NNT of 7-8) 1
- Fluoxetine is FDA-approved for depression in adults and adolescents, while escitalopram is approved for adults and adolescents aged 12 years and older 1
- Starting doses for SSRIs should generally be lower than maximum doses (e.g., fluoxetine 20 mg/day) 3
Medication Selection Considerations
- For treatment-naïve patients, all second-generation antidepressants are equally effective; choice should be based on patient preferences, adverse effect profiles, cost, and dosing frequency 1
- Preferred agents for older patients include citalopram, escitalopram, sertraline, mirtazapine, and venlafaxine 1
- Serotonin-norepinephrine reuptake inhibitors (SNRIs) may be slightly more effective than SSRIs but have higher rates of adverse effects like nausea and vomiting 1
Monitoring and Dose Adjustment
- Regular monitoring is essential - patients should be assessed at 4 and 8 weeks using standardized validated instruments to evaluate symptom relief, side effects, and satisfaction 1
- If there is little improvement after 8 weeks despite good adherence, the treatment regimen should be adjusted (e.g., change medication, add psychological intervention) 1
- About 63% of patients receiving second-generation antidepressants experience at least one adverse effect during treatment 1
Combined Treatment Approach
- Combined psychotherapy and pharmacotherapy may be preferred, especially for more severe or chronic depression 2
- Combined treatment shows greater symptom improvement than either psychotherapy alone or medication alone 2
Treatment Duration
- For a first episode of major depression, treatment should continue for at least 4-9 months after symptom remission 1
- Patients with recurrent depression may benefit from prolonged treatment 1
- The treatment of depression can be characterized by 3 phases: acute (6-12 weeks), continuation (4-9 months), and maintenance (≥1 year) 1
Special Populations
Adolescents
- For adolescents with depression, fluoxetine may be considered as one possible treatment in non-specialist settings, but patients should be monitored closely for suicidal ideation/behavior 1
- For children aged 6-12 years, antidepressants should not be used for treatment of depressive episodes in non-specialist settings 1
Older Adults
- A "start low, go slow" approach is recommended for antidepressant therapy in older persons 1
- Paroxetine and fluoxetine should generally be avoided in older adults due to higher rates of adverse effects 1
Treatment Effectiveness and Considerations
- Antidepressants are most effective in patients with severe depression 1
- Collaborative care programs that include systematic follow-up and outcome assessment improve treatment effectiveness 2
- If pharmacologic treatment is used, the treating clinician should regularly assess symptom relief, side effects, and patient satisfaction 1
Common Pitfalls and Caveats
- Deliberate self-harm and suicide risk may be more likely if SSRIs are started at higher doses rather than normal starting doses 1
- Nausea and vomiting are the most common reasons for discontinuation of antidepressant therapy 1
- All SSRIs should be slowly tapered when discontinued because of risk of withdrawal effects 1
- When switching from an SSRI to a monoamine oxidase inhibitor (MAOI), at least 5 weeks should be allowed after stopping the SSRI before starting the MAOI 3