Loop diuretic + potassium-sparing
Furosemide with triamterene
Brand names: Frusene
Adult dose
Dose: 1 tab (40mg furosemide / 50mg triamterene) OD; max 2 tabs/day
Route: PO
Frequency: OD
Clinical pearls
- Heart failure where K+ retention desired
Contraindications
- Hyperkalaemia
- Severe renal impairment
- Anuria
- Addison's disease
Side effects
- Hyperkalaemia
- Hyponatraemia
- Hyperuricaemia
- Postural hypotension
- Photosensitivity
Interactions
- ACEi/ARB/spironolactone (hyperkalaemia)
- NSAIDs
- Lithium (toxicity)
Monitoring
- U&E
- Weight
Reference: BNF; https://bnf.nice.org.uk/drugs/furosemide-with-triamterene/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- Hyperkalaemia Management Algorithm · Electrolyte Disorders
- FAST Exam Protocol — Focused Assessment with Sonography in Trauma · Trauma
- Transtubular Potassium Gradient (TTKG) · Electrolytes
- Potassium Deficit Calculator · Electrolytes
- Hyperkalaemia Severity and ECG Risk · Electrolytes
- Furosemide Stress Test (FST) for AKI Progression · AKI
Pathways
- Acute Heart Failure · ESC 2021 Heart Failure Guidelines; NICE NG106
- NSTEMI / Unstable Angina · ESC 2020 NSTEMI Guidelines; NICE NG185
- New-Onset Atrial Fibrillation · ESC 2020 AF Guidelines; NICE NG196
- Hypertensive Emergency · ESC/ESH 2018 Hypertension Guidelines; NICE NG136
- Bradycardia Management · Resuscitation Council UK ABCDE; ESC 2021 Pacing Guidelines
- Ventricular Tachycardia / Fibrillation · Resuscitation Council UK ACLS; ESC 2022 Ventricular Arrhythmia Guidelines