SSRI (Selective Serotonin Reuptake Inhibitor)
Pregnancy: Avoid near term — neonatal adaptation syndrome; compatible early pregnancy if risk-benefit favourable
Escitalopram
Brand names: Cipralex
Adult dose
Dose: Starting: 10 mg OD. Increase to 20 mg OD after 2–4 weeks if insufficient response.
Route: Oral
Frequency: Once daily (morning or evening)
Max: 20 mg OD (10 mg OD in elderly)
Active enantiomer of citalopram. Has one of the cleanest side effect profiles among SSRIs. QT prolongation risk greater than other SSRIs — MHRA 2011 restriction (max 10 mg OD in elderly or with hepatic impairment or QT prolongation risk).
Paediatric dose
Route: Oral
Frequency: OD
Max: Not licensed in children
Concentration: 5 mg/mL oral drops mg/ml
Not licensed for paediatric use in UK
Dose adjustments
Renal
No dose adjustment required (mild-moderate); caution in severe renal impairment
Hepatic
Maximum 10 mg OD in hepatic impairment
Clinical pearls
- MHRA 2011: QT prolongation risk with escitalopram/citalopram — check ECG before starting in cardiac patients; max 10 mg OD in elderly or QT risk factors
- Hyponatraemia: more common in elderly on SSRIs (SIADH) — check sodium at 1 month in elderly or at-risk patients
- Onset of antidepressant effect: 2–4 weeks; full benefit at 4–8 weeks — counsel patients to persist
- Discontinue gradually over several weeks — acute discontinuation causes dizziness, headache, nausea
Contraindications
- Concomitant MAOIs
- Congenital long QT syndrome
- QT prolongation or risk factors
- Elderly with QT risk factors (max 10 mg)
Side effects
- Nausea (first 2 weeks)
- Insomnia or somnolence
- Sexual dysfunction
- Dry mouth
- Sweating
- QT prolongation
- Hyponatraemia (SIADH — elderly risk)
- Discontinuation symptoms
Interactions
- MAOIs — serotonin syndrome (14-day washout)
- QT-prolonging drugs — additive risk
- Tramadol/triptans — serotonin syndrome risk
- NSAIDs — GI bleeding risk
- Anticoagulants — may affect INR
Monitoring
- ECG (QTc) in at-risk patients
- Serum sodium (elderly)
- Mood and suicide risk assessment
Reference: BNFc; BNF; MHRA Drug Safety Update 2011; NICE NG222. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- SMART Risk Score for Recurrent CVD · Cardiovascular Risk
- PCSK9 Inhibitor Eligibility Assessment · Lipid Management
- Immune-Related Adverse Events (irAE) -- GI Toxicity Colitis Grading · Oncology-Related GI
- irAE Hepatitis Grading (CTCAE) · Immunotherapy
- DIPSS — Dynamic International Prognostic Scoring System for Myelofibrosis · Cancer Prognosis
- BALL Score for Relapsed/Refractory CLL · Leukaemia
Drugs
Pathways
- Acute Behavioural Disturbance / Rapid Tranquillisation · RCEM 2022; RCPsych 2022; NICE NG10
- Self-Harm Presentation · NICE NG225 (2022)
- Capacity Assessment (Mental Capacity Act) · MCA 2005; Code of Practice
- Acute Psychosis Management · NICE CG178 2014
- Depression Management · NICE CG90 2022
- Lithium Therapy Monitoring · NICE CG185 / BNF