Important: This is informational content only. Always consult Dr. Ambrish Singal or your psychiatrist before starting, stopping, or changing any medication.
What is Escitalopram?
Escitalopram is the S-enantiomer of citalopram and is considered one of the most selective SSRIs available. It is widely prescribed for depression and generalized anxiety disorder due to its favorable side effect profile.
How It Works
Escitalopram selectively inhibits serotonin reuptake with high potency, leading to increased serotonin availability in the brain. Its selectivity means fewer off-target effects compared to other antidepressants.
Uses
How This Drug Starts Working
Among the fastest-acting SSRIs. Some patients notice improvement within 1 week, full effect by 4-6 weeks.
Week-by-Week Timeline
Week 1: Sleep and anxiety may begin improving. Some patients report early mood lift. Mild nausea/headache may occur.
Week 2: Energy and motivation starting to return. Anxiety significantly reduced for many.
Week 3-4: Clear improvement in mood, concentration, and social engagement.
Week 5-6: Full therapeutic effect. Mood stable, functioning improved.
What Changes First?
Anxiety often improves before depression — many notice reduced worry and tension within the first 1-2 weeks. Sleep normalizes early. Mood and pleasure follow.
Why Does It Take Time?
Even though escitalopram is the most selective SSRI (fewer off-target effects), it still requires the same biological remodeling of serotonin receptors and neural circuits as other antidepressants.
Complete Dosage Guide
How to Take
Once daily, morning or evening. Can be taken with or without food. Tablet or liquid form available.
Starting Dose
10mg once daily for most adults. 5mg if elderly, liver problems, or very anxious initially.
Dose Increases
May increase to 20mg after at least 1 week (but usually wait 2-4 weeks to assess response).
Maximum Dose
20mg/day (adults). 10mg/day (elderly — due to QT prolongation risk at higher doses).
When to Take
Less activating than fluoxetine — can be taken morning or evening. If causes insomnia, try morning; if drowsiness, try evening.
If You Miss a Dose
Take when remembered. Skip if close to next dose. The 27-32 hour half-life provides some buffer for missed doses.
Food & Drink
No food interactions. Avoid excessive alcohol (worsens depression and may increase side effects).
How Long to Take
Minimum 6 months after remission. Recurrent depression may need 2+ years or indefinite treatment.
Dosage by Age Group
adult
Initial: 10mg once daily. May increase to 20mg/day after at least 1 week. Maximum: 20mg/day.
child
Ages 12+: Start 10mg/day. Maximum: 20mg/day. Not approved below age 12.
elderly
Maximum recommended dose: 10mg/day due to increased exposure.
Special Populations
Pregnancy
Category C. Use with caution. Neonatal complications possible with third-trimester exposure.
Kidney Conditions
No adjustment needed for mild-moderate impairment. Caution in severe renal disease.
Liver Conditions
Maximum dose 10mg/day in hepatic impairment.
Side Effects
Common
- Nausea
- Insomnia
- Fatigue
- Sweating
- Sexual dysfunction
- Dry mouth
- Headache
Serious
- QT prolongation (dose-dependent)
- Serotonin syndrome
- Suicidal ideation in young adults
- Hyponatremia
- Abnormal bleeding
What You Should Know
Overdose Risks
May cause QT prolongation, seizures, and serotonin syndrome. Escitalopram has dose-dependent cardiac effects. ECG monitoring recommended in overdose situations.
Safe Discontinuation
Taper gradually over 2-4 weeks. Withdrawal symptoms include dizziness, sensory disturbances, anxiety, irritability, and insomnia.