Adrenaline (Epinephrine)

Emergency Drugs

Emergency Drugs · α/β adrenergic agonist

Adrenaline (Epinephrine)

Brand: Adrenaline 1:1000 / 1:10,000

Dose

Anaphylaxis: 0.5 mg IM (1:1000). Arrest: 1 mg IV (1:10,000) q3–5 min. Infusion: 0.05–0.5 mcg/kg/min.

Mechanism

Non-selective α₁, β₁, β₂ agonist — vasoconstriction, inotropy, bronchodilation

Indications

  • • Anaphylaxis
  • • Cardiac arrest
  • • Severe bronchospasm
  • • Refractory shock

Contraindications

  • • No absolute in emergencies

Dose adjustment

Child anaphylaxis: 6–12 yr 0.3 mg IM; <6 yr 0.15 mg IM

Dilution & preparation

1 mg in 100 mL D5W or NS for infusion (10 mcg/mL)

Administration

IM thigh (anaphylaxis); central line for infusion

Use

Anaphylaxis, cardiac arrest, refractory shock, severe bronchospasm.

Monitoring

ECG, BP, HR continuously. Reassess after each IM dose at 5 min.

Side effects

  • • Tachyarrhythmias
  • • Hypertension
  • • Anxiety / tremor
  • • Myocardial ischaemia
  • • Extravasation necrosis

Pregnancy safety

Use in emergencies; safe for anaphylaxis.

Related in WardRound

Always confirm dose against your local formulary / BNF before prescribing.

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