Treatment for Feeling Low (Depression)
First-Line Treatment Approach
Start with either an SSRI antidepressant (fluoxetine 20mg or sertraline 50mg daily) or evidence-based psychotherapy (cognitive behavioral therapy, behavioral activation, or interpersonal therapy), with combination treatment preferred for moderate-to-severe symptoms. 1
Medication Options
SSRIs and SNRIs are first-line pharmacological treatments, with all 21 studied antidepressants showing small-to-medium effect sizes over placebo (standardized mean difference 0.23-0.48). 1
- Fluoxetine: Start 20mg daily in the morning, may increase after several weeks if insufficient response, maximum 80mg/day. 2
- Sertraline: Effective for depression with comorbid anxiety or panic symptoms. 3
- Full therapeutic effect may require 4+ weeks of treatment. 2
Psychotherapy Options
Six psychotherapy modalities have medium-to-large effect sizes (standardized mean difference 0.50-0.73 over usual care): 1
- Cognitive behavioral therapy
- Behavioral activation
- Problem-solving therapy
- Interpersonal therapy
- Brief psychodynamic therapy
- Mindfulness-based psychotherapy
Combination Treatment
Combine antidepressant medication with psychotherapy for moderate-to-severe depression, as combination treatment shows superior outcomes compared to either modality alone (standardized mean difference 0.30 over psychotherapy alone, 0.33 over medication alone). 1
Assessment Requirements Before Treatment
Screen using a validated tool with established cutoffs, such as the PHQ-9 with a cutoff score ≥8 for depression. 4
Evaluate these specific factors before initiating treatment: 4
- Suicidal ideation or self-harm risk
- History of bipolar disorder (antidepressant monotherapy contraindicated)
- Psychotic symptoms
- Substance use disorders
- Comorbid anxiety (present in 85% of depression cases)
- Medical comorbidities and current medications
Treatment Monitoring
Implement systematic follow-up with outcome assessment every 2-4 weeks initially, as collaborative care programs with regular monitoring significantly improve treatment effectiveness (standardized mean difference 0.42 over usual care). 1, 4
Reassess at 4 weeks and 8 weeks using standardized instruments. 4
- If minimal improvement after 8 weeks with good adherence, add psychotherapy to medication or switch treatment strategy. 4
- Consider switching from group to individual therapy if insufficient response. 4
Second-Line Strategies for Treatment-Resistant Depression
If initial antidepressant fails, three options have approximately equal likelihood of success: 1
- Switch to a different antidepressant
- Add a second antidepressant
- Augment with a non-antidepressant medication (such as atypical antipsychotics)
Special Populations
Comorbid Anxiety
When depression and anxiety coexist (occurs in 85-90% of cases), prioritize treating depressive symptoms first, as this often improves anxiety concurrently. 5, 6
- SSRIs and SNRIs treat both conditions effectively. 7, 6
- Benzodiazepines may help insomnia and anxiety but do not treat depression and carry dependency risks. 6
Post-Stroke Depression
Use SSRIs or tricyclic antidepressants for post-stroke depression, with pharmacotherapy having Grade A evidence. 4
- Antidepressants also effectively treat emotional lability post-stroke. 4
- Patient and family education is essential, as emotional symptoms are often mistaken for depression. 4
Cancer Survivors
Screen at initial diagnosis, during treatment transitions, and at regular intervals. 4
- Low-intensity interventions include psychosocial support groups and individual psychological therapy. 4
- Pharmacologic treatment with antidepressants should be monitored regularly for adherence and side effects. 4
Maintenance Treatment
Continue antidepressant treatment for several months minimum after remission, as discontinuation increases relapse risk compared to continued use. 7
- Gradually taper dosage while providing concurrent cognitive behavioral therapy to decrease relapse risk. 7
- Few studies examine safety beyond 2 years, though many patients use antidepressants indefinitely. 7
Critical Pitfalls to Avoid
- Never use antidepressant monotherapy in bipolar disorder - this can trigger mania or rapid cycling. 5
- Do not expect immediate results - full therapeutic effect requires 4+ weeks. 2
- Avoid premature discontinuation - inadequate treatment duration leads to high relapse rates. 5
- Do not overlook comorbid anxiety - present in 85% of depression cases and requires concurrent treatment. 6
- Failure to monitor systematically - collaborative care with regular follow-up significantly improves outcomes. 1