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Mineralocorticoid

Fludrocortisone acetate

Brand names: Florinef

Adult dose

Dose: 50–300 micrograms OD; postural hypotension up to 400 micrograms OD
Route: PO
Frequency: OD

Clinical pearls

  • Adrenal insufficiency (Addison's, CAH); orthostatic hypotension
  • Co-administered with hydrocortisone in primary adrenal failure

Contraindications

  • Systemic infection unless specific therapy given

Side effects

  • Sodium/water retention
  • Hypertension
  • Hypokalaemia
  • Oedema
  • Cushingoid features at high dose

Interactions

  • NSAIDs (oedema)
  • Diuretics (hypokalaemia)
  • Live vaccines (high dose)

Monitoring

  • BP
  • U&E
  • Weight

Reference: BNF; Endocrine Society guidelines; https://bnf.nice.org.uk/drugs/fludrocortisone-acetate/. Verify against your local formulary and the latest BNF before prescribing.

Related

Curated clinical cross-links plus same-class fallbacks.