Recommended Treatment Approach for Anxiety and Depression
For adults with anxiety and depression, initiate treatment with an SSRI (escitalopram 10-20 mg/day or sertraline 50-200 mg/day) combined with individual cognitive behavioral therapy (CBT), as this combination provides superior outcomes compared to either treatment alone. 1, 2
Initial Assessment and Severity Stratification
- Screen using the PHQ-9 for depression, with scores ≥8 indicating clinically significant symptoms requiring intervention 1
- Assess for suicidal ideation immediately—any endorsement requires immediate referral to psychiatry or emergency services 1, 3
- Evaluate functional impairment: mild-to-moderate impairment suggests moderate symptomatology; marked interference with daily functioning indicates severe symptomatology 1
- Identify risk factors including: recurrent/progressive disease, social isolation (single/widowed/divorced), unemployment, low financial resources, and lower education 1
Treatment Algorithm by Severity
Mild Symptoms (PHQ-9 < 10, adequate coping, minimal functional impairment)
- Offer low-intensity interventions: individually guided self-help based on CBT principles, structured physical activity programs, and psychoeducation about stress reduction 1, 2
- Provide education on progressive muscle relaxation, sleep hygiene (CBT for insomnia), and behavioral activation strategies 1
- Monitor biweekly until symptoms remit 1
Moderate Symptoms (PHQ-9 10-19, most depressive/anxiety symptoms present, mild-to-moderate functional impairment)
- Initiate SSRI monotherapy: Start sertraline 25-50 mg daily or escitalopram 5-10 mg daily 2, 4
- Titrate sertraline by 25-50 mg increments every 1-2 weeks to target dose of 50-200 mg/day; escitalopram by 5-10 mg increments to 10-20 mg/day 2, 4
- Refer for individual CBT (12-20 sessions) focusing on cognitive restructuring, behavioral activation, and exposure when appropriate 1, 2
- Make referral to psychology for diagnostic confirmation 1
Moderate-to-Severe/Severe Symptoms (PHQ-9 ≥20, majority of symptoms, marked functional impairment, or suicidal ideation)
- Immediate referral to psychiatry for diagnosis and treatment 1
- Initiate combined treatment: SSRI plus individual CBT, as this provides superior outcomes for severe presentations 1, 2
- For patients with relationship distress contributing to symptoms, add behavioral couples therapy 1, 3
Pharmacological Treatment Specifics
First-Line Medications
- SSRIs are first-line due to established efficacy and favorable safety profiles 2
- Escitalopram and sertraline are top-tier choices with lower discontinuation symptom risk compared to paroxetine or fluvoxamine 2
- SNRIs (duloxetine 60-120 mg/day or venlafaxine 75-225 mg/day) are alternatives when SSRIs fail or for comorbid pain conditions 2
- Venlafaxine requires blood pressure monitoring due to risk of sustained hypertension 2
Expected Timeline and Monitoring
- Statistically significant improvement begins by week 2, clinically significant improvement by week 6, maximal benefit by week 12 or later 2
- Do not abandon treatment before 12 weeks at therapeutic doses 2
- Monitor for common side effects: nausea, sexual dysfunction, headache, insomnia, diarrhea—most emerge within first few weeks and resolve with continued treatment 2
- Critical warning: Monitor closely for suicidal thinking, especially in first months and after dose adjustments (pooled risk 1% vs 0.2% placebo) 2
If First SSRI Fails After 8-12 Weeks
- Switch to a different SSRI (e.g., sertraline to escitalopram) 2
- Consider adding CBT if not already implemented 2
- Pregabalin/gabapentin can be considered as second-line when first-line treatments are ineffective 2
Psychological Interventions
Individual CBT (Prioritized Over Group Therapy)
- Individual CBT demonstrates superior clinical and cost-effectiveness compared to group therapy, with large effect sizes for anxiety (Hedges g = 1.01) 2
- Include cognitive restructuring to challenge negative thought patterns, behavioral activation to increase pleasurable activities, relaxation techniques, and gradual exposure when appropriate 1, 2
- Structured duration of 12-20 sessions achieves significant symptomatic and functional improvement 2
Group Psychosocial Interventions
- Structured groups led by licensed mental health professionals covering stress reduction, positive coping (problem-solving, assertive communication), enhancing social support, and health behavior change 1
- Consider transitioning to individual treatment if symptoms do not remit or worsen 1
Ongoing Monitoring and Follow-Up
- Assess symptoms biweekly or monthly until remission, as patients with depression often lack motivation to follow through on referrals 1, 3
- Evaluate treatment adherence, side effects, and satisfaction with both pharmacological and psychological interventions 1
- After 8 weeks of treatment, if symptom reduction is poor despite good compliance, alter the treatment approach (switch medications, add CBT, or intensify therapy) 1, 3
- Continue treatment for at least 4-9 months after initial response to prevent relapse 3
Common Pitfalls to Avoid
- Avoid tricyclic antidepressants due to unfavorable risk-benefit profile, particularly cardiac toxicity 2
- Avoid paroxetine as first-line due to higher risk of discontinuation syndrome and potentially increased suicidal thinking 2
- Reserve benzodiazepines for short-term use only due to risks of dependence, tolerance, and withdrawal; they do not treat depression 2, 5
- Do not escalate SSRI doses too quickly—allow 1-2 weeks between increases to assess tolerability and avoid overshooting the therapeutic window 2, 4
- Do not use beta blockers (atenolol, propranolol) for social anxiety disorder based on negative evidence 2
Special Considerations
- Use culturally sensitive assessments and treatments when possible 1
- Tailor assessment for those with learning disabilities or cognitive impairments 1
- Be aware of difficulty detecting depression in older adults 1
- Provide psychoeducation to family members about symptoms and treatment; consider referral for parents/caregivers who struggle with anxiety themselves 2
- Offer supportive care services including financial guidance, nutrition/dietary support, and information on reliable resources 1