Non-selective β-agonist
Isoprenaline hydrochloride
Adult dose
Dose: Bradyarrhythmia: 0.5–10 micrograms/min IV infusion titrated to HR
Route: IV
Frequency: continuous
Clinical pearls
- Bradycardia/heart block as bridge to pacing; torsades de pointes in absence of QT prolongation
- ICU/specialist setting
Contraindications
- Tachyarrhythmia
- Recent MI
- Angina
- Digoxin toxicity
Side effects
- Tachyarrhythmia
- Palpitations
- Headache
- Hypotension
- Tremor
Interactions
- β-blockers (antagonism)
- TCAs/MAOIs (potentiation)
- Digoxin/halothane (arrhythmia)
Monitoring
- ECG
- BP
- HR
Reference: BNF; UK Resus Council; https://bnf.nice.org.uk/drugs/isoprenaline-hydrochloride/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
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