How should I taper off Lexapro (escitalopram) 20 mg?

How to Taper Off Lexapro 20mg

Lexapro (escitalopram) 20 mg should be tapered gradually rather than stopped abruptly, with a slow dose reduction over several weeks to months depending on individual risk factors, to minimize withdrawal symptoms that occur in at least half of patients discontinuing SSRIs.

FDA-Approved Tapering Guidance

The FDA label for Lexapro explicitly states: "A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible" 1. If intolerable symptoms occur during dose reduction, you should resume the previous dose and then decrease more gradually 1.

Understanding Withdrawal Risk

Escitalopram discontinuation syndrome is common and can be severe. In one study, 56% (14 of 25 patients) experienced withdrawal symptoms when stopping escitalopram 2. The most frequent symptoms include:

• Dizziness (44%)
• Muscle tension (44%)
• Chills (44%)
• Confusion or trouble concentrating (40%)
• Amnesia (28%)
• Crying (28%)

Higher doses and longer treatment duration increase withdrawal risk 2. Since you're on 20 mg (the maximum dose), you're at elevated risk and require a particularly cautious approach.

Recommended Tapering Strategy

For Standard Risk Patients

Current guidelines typically recommend tapering over 2-6 weeks 3. However, this approach shows minimal benefit over abrupt discontinuation and is often poorly tolerated 4.

A more effective approach for 20 mg escitalopram:

1. Reduce to 15 mg daily for 2-4 weeks
2. Reduce to 10 mg daily for 2-4 weeks (the standard therapeutic dose)
3. Reduce to 5 mg daily for 2-4 weeks
4. Consider further reduction to 2.5 mg or lower before stopping

Monitor closely during each reduction, waiting at least 1-2 weeks between dose changes 3.

For Higher Risk Patients

If you have any of the following, use a slower taper:

• Previous difficulty stopping antidepressants
• History of withdrawal symptoms
• Treatment duration >1 year
• Anxiety about stopping
• Previous relapse when tapering

For higher-risk patients, taper over several months using smaller decrements:

Recent evidence strongly supports hyperbolic (exponential) tapering that reduces receptor occupancy linearly rather than reducing doses linearly 4, 5, 6, 7. This means:

• Smaller dose reductions as you reach lower doses
• Tapering down to very small doses (e.g., 1-2 mg or less) before complete cessation 5, 6
• Monthly or slower reductions (e.g., 10% of current dose per month) 8

Example hyperbolic taper from 20 mg over 4-6 months:

• 20 mg → 15 mg (4 weeks)
• 15 mg → 12 mg (4 weeks)
• 12 mg → 10 mg (4 weeks)
• 10 mg → 7.5 mg (4 weeks)
• 7.5 mg → 5 mg (4 weeks)
• 5 mg → 2.5 mg (4 weeks)
• 2.5 mg → 1 mg (4 weeks)
• 1 mg → stop

For very high-risk patients, this process may take 6-12 months or longer 8, 5.

Practical Considerations

Obtaining Smaller Doses

• Escitalopram is available in 5 mg and 10 mg scored tablets that can be split 1
• For doses below 2.5 mg, you may need:
  • Liquid formulation (1 mg/mL) 1
  • Compounded preparations 6
  • Dissolving tablets in water for precise dosing 5

Avoid Alternate-Day Dosing

Do not switch to every-other-day dosing (e.g., 20 mg every other day instead of 10 mg daily). This causes pronounced fluctuations in receptor occupancy and significantly increases withdrawal risk, even at low doses 9. Escitalopram's half-life makes this approach particularly problematic.

Monitoring During Taper

• Follow up every 2-4 weeks during active tapering 8, 5
• Watch for withdrawal symptoms vs. relapse of depression/anxiety
• If withdrawal symptoms emerge, pause the taper or slow the rate 8
• If symptoms are intolerable, return to the previous dose and taper more slowly 1

Distinguishing Withdrawal from Relapse

Withdrawal symptoms typically:

• Occur within days of dose reduction
• Include physical symptoms (dizziness, flu-like symptoms, electric shock sensations)
• Improve if dose is restored

Relapse typically:

• Occurs weeks after dose reduction
• Matches original depression/anxiety symptoms
• Does not improve quickly with dose restoration

Critical Warnings

• Never stop abruptly - this significantly increases withdrawal risk 10, 3
• Avoid benzodiazepines during taper unless already prescribed, as they complicate withdrawal management 11
• Monitor for suicidal thoughts, especially in younger patients 1
• Very slow tapering is recommended for all patients on escitalopram given the high withdrawal risk 2

If Taper Fails

If you cannot tolerate tapering despite very gradual reductions:

• Pause the taper and stabilize at current dose
• Maximize non-pharmacologic treatments (cognitive behavioral therapy, exercise, sleep hygiene) 12, 8
• Consider switching to fluoxetine (longer half-life, easier to discontinue) before final taper - though this adds complexity
• Resume previous dose if needed, then attempt slower taper when ready 8, 1

The goal may be dose reduction rather than complete discontinuation if full cessation proves intolerable 8.