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Potent Systemic Corticosteroid

Betamethasone (Systemic)

Brand names: Betnesol (IV/IM), Celestone (IM depot)

Betamethasone given systemically (oral or by injection) is a potent long-acting corticosteroid used for a range of inflammatory, allergic and autoimmune conditions and in some obstetric indications. This page covers systemic use, distinct from topical or inhaled preparations.

Dosing — being independently re-sourced

ClinCalc Pro is rebuilding its dose data from primary open sources — the manufacturer SmPC (eMC), the WHO Model Formulary and other official references — under clinician review. This drug's structured dose is not yet published here. Confirm all doses against the product SmPC and your local formulary before prescribing.

Clinical monograph

How it works

It is a synthetic glucocorticoid with high anti-inflammatory and immunosuppressive potency and minimal mineralocorticoid effect, acting on glucocorticoid receptors to suppress inflammatory gene expression.

Prescribing in practice

  • Do not stop prolonged therapy abruptly — systemic corticosteroids suppress the adrenal axis, so taper the dose and provide a steroid treatment card and sick-day advice.
  • Long-term use causes immunosuppression, hyperglycaemia, osteoporosis, hypertension and neuropsychiatric effects, and can mask or worsen infection.
  • Use the lowest effective dose for the shortest period and review the need for gastric, bone and infection prophylaxis.

Monitoring

Monitor blood glucose, blood pressure, weight, mood and signs of infection, with bone health review during prolonged courses.

Counselling the patient

  • Never stop the steroid suddenly and carry your steroid card at all times.
  • Seek advice if you develop signs of infection or feel acutely unwell, and take extra steroid cover when ill if instructed.
  • Report mood changes, marked thirst or new indigestion.

Evidence & guidelines

Systemic corticosteroid use is supported by extensive clinical experience and trial data across many inflammatory and immune-mediated conditions.

Reference: NICE NG25 (Preterm Labour); Royal College of Obstetricians and Gynaecologists (RCOG) Antenatal Corticosteroids Guideline; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.

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