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SSRI (Selective Serotonin Reuptake Inhibitor) Pregnancy: §4.6: Only limited clinical data are available regarding exposed pregnancies; animal studies have shown reproductive toxicity. Escitalopram SHOULD NOT BE USED during pregnancy unless clearly necessary and only after careful consideration of the risk/benefit. Abrupt discontinuation should be avoided during pregnancy. Neonates should be observed if maternal use continues into the later stages of pregnancy, particularly the third trimester — symptoms may include respiratory distress, cyanosis, apnoea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycaemia, hypertonia, hypotonia, hyperreflexia, tremor, jitteriness, irritability, lethargy, constant crying, somnolence and difficulty sleeping, usually beginning within 24 hours of delivery. SSRI use in late pregnancy may increase the risk of persistent pulmonary hypertension of the newborn (approximately 5 cases per 1000 pregnancies, against 1-2 per 1000 in the general population). Observational data indicate an increased risk (less than 2-fold) of postpartum haemorrhage.

Escitalopram

Brand names: Cipralex

Escitalopram is a selective serotonin reuptake inhibitor (SSRI) used for depression and anxiety disorders.

Auto-extracted from the source labelling — not yet independently clinician-verified. These values were distilled from the UK SPC (or the US label where noted) but have not had a clinician sign-off. Confirm against the current SmPC before prescribing.

Adult dose

Dose: 10 mg once daily (usual dose for major depressive episodes)
Route: Oral
Frequency: Once daily as a single daily dose, with or without food
Max: 20 mg daily — the safety of daily doses above 20 mg has not been demonstrated. In elderly patients (>65 years) the dose may be increased only to 10 mg daily
Source: UK SPC (eMC) for Cipralex 10 mg film-coated tablets, §4.2 (https://www.medicines.org.uk/emc/product/7718/smpc). MAJOR DEPRESSIVE EPISODES: usual dosage 10 mg once daily, which may be increased to a maximum of 20 mg daily depending on individual patient response. Usually 2-4 weeks are necessary to obtain antidepressant response; after symptoms resolve, treatment for at least 6 months is required for consolidation. PANIC DISORDER WITH OR WITHOUT AGORAPHOBIA: an initial dose of 5 mg is recommended for the first week before increasing to 10 mg daily, and may be further increased up to a maximum of 20 mg daily; maximum effectiveness is reached after about 3 months and treatment lasts several months. SOCIAL ANXIETY DISORDER: usual dosage 10 mg once daily; usually 2-4 weeks for symptom relief; the dose may subsequently be decreased to 5 mg or increased to a maximum of 20 mg daily; treatment for 12 weeks is recommended to consolidate response, and long-term treatment of responders has been studied for 6 months. GENERALISED ANXIETY DISORDER: initial 10 mg once daily, increased to a maximum of 20 mg daily depending on response; long-term treatment of responders studied for at least 6 months at 20 mg daily. OBSESSIVE-COMPULSIVE DISORDER: initial 10 mg once daily, increased to a maximum of 20 mg daily; as OCD is chronic, patients should be treated for a sufficient period to ensure they are symptom free. ELDERLY (>65 years): initial dosage 5 mg once daily, which may be increased to 10 mg daily depending on response; efficacy in social anxiety disorder has not been studied in the elderly. HEPATIC IMPAIRMENT: an initial dose of 5 mg daily for the first two weeks is recommended in mild or moderate impairment, which may be increased to 10 mg daily depending on response; caution and extra careful dose titration in severely reduced hepatic function. CYP2C19 POOR METABOLISERS: an initial dose of 5 mg daily during the first two weeks is recommended, which may be increased to 10 mg daily depending on response. PAEDIATRIC: should NOT be used in the treatment of children and adolescents under the age of 18 years — hence paedDose is null. Verify any under-18 use against a children's formulary. DISCONTINUATION: abrupt discontinuation should be avoided; the dose should be gradually reduced over a period of at least one to two weeks; if intolerable symptoms occur, resuming the previously prescribed dose may be considered, then decreasing at a more gradual rate. Note: §4.5 was not retrieved in this bundle — the interactions listed below are taken from §4.3 of the UK SPC and from the US label; verify the full §4.5.

Dose adjustments

Renal

Dosage adjustment is not necessary in patients with mild or moderate renal impairment. Caution is advised in patients with severely reduced renal function (creatinine clearance less than 30 ml/min) (§4.2).

Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.

Contraindications

  • Hypersensitivity to the active substance or to any of the excipients
  • Concomitant treatment with non-selective, irreversible MAO inhibitors — risk of serotonin syndrome with agitation, tremor, hyperthermia
  • Combination with reversible MAO-A inhibitors (e.g. moclobemide) or the reversible non-selective MAO inhibitor linezolid — risk of serotonin syndrome
  • Known QT interval prolongation or congenital long QT syndrome
  • Concomitant use with medicinal products known to prolong the QT interval

Side effects

  • Headache (very common) and nausea (very common)
  • Insomnia, somnolence, dizziness, paraesthesia, tremor (common)
  • Diarrhoea, constipation, vomiting, dry mouth (common)
  • Sweating increased (common); arthralgia and myalgia (common)
  • Decreased appetite, increased appetite, weight increased (common)
  • Anxiety, restlessness, abnormal dreams, libido decreased, anorgasmia in women (common); serotonin syndrome (rare); QT prolongation and ventricular arrhythmia including torsade de pointes (not known)

Interactions

  • Monoamine oxidase inhibitors (MAOIs) — increased risk of serotonin syndrome; contraindicated, including MAOIs such as linezolid or intravenous methylene blue
  • Pimozide — concomitant use with racemic citalopram increases plasma concentrations of pimozide, a drug with a narrow therapeutic index (US label)
  • Medicinal products known to prolong the QT interval — contraindicated (§4.3)
  • Other serotonergic drugs (including opioids, lithium, buspirone, amphetamines, tryptophan and St John's Wort) — increased risk of serotonin syndrome; monitor particularly during initiation and dosage increases (US label)

Clinical monograph

How it works

As the active enantiomer of citalopram, it selectively inhibits serotonin reuptake at the presynaptic transporter, increasing synaptic serotonin availability.

Prescribing in practice

  • Escitalopram causes dose-dependent QT-interval prolongation, so it should be avoided in known QT prolongation and used cautiously with other QT-prolonging drugs or electrolyte disturbance.
  • There is an increased risk of suicidal thoughts and behaviour early in treatment, particularly in younger adults, warranting close monitoring.
  • Risk of hyponatraemia, gastrointestinal bleeding and serotonin syndrome increases with concomitant drugs such as NSAIDs, anticoagulants and other serotonergic agents.

Monitoring

Monitor mood and suicidal ideation early in treatment and consider ECG and electrolytes where cardiac risk or QT-prolonging therapy is present.

Counselling the patient

  • Antidepressant effect may take a few weeks; continue treatment as prescribed.
  • Report worsening mood or thoughts of self-harm, especially in the first weeks.
  • Do not stop suddenly, as discontinuation symptoms can occur; taper under guidance.

Evidence & guidelines

Escitalopram is a recommended first-line SSRI in NICE depression guidance, and the MHRA has highlighted its dose-dependent QT-prolongation risk.

Reference: MHRA Drug Safety Update 2011; NICE NG222; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.