Respiratory · β₂ agonist
Salbutamol
Dose
Neb 5 mg q4h back-to-back acute asthma; inhaler 100 mcg 1–2 puffs PRN; IV 4–8 mcg/kg over 10 min
Use
Asthma, COPD, hyperkalaemia (10 mg neb).
Monitoring
HR, K⁺, lactate, PEF.
Side effects
- • Tremor
- • Tachycardia
- • Hypokalaemia
- • Hyperglycaemia
Always confirm dose against your local formulary / BNF before prescribing.
