Injection
3 mg/ml
30 mg/ml
Nasal drops
1%
0.5%
Dosage forms
Uses
Dose and duration
Prevention of hypotension from spinal or epidural anaesthesia
Adult and child over 12 years: by slow IV
infusion, 3–6 mg (max 9 mg) repeated every 3–4 minutes as
required to a maximum cumulative dose of 30 mg
Child 1–12 years: 0.5–0.75 mg/kg or 17–25 mg/m²
every 3–4 minutes according to response (max 30 mg during each
episode)
Relief of nasal congestion
Adult: Instil 1–2 drops of 1% strength as
required in each nostril up to a maximum of 4 times a day
Child 12–18 years: instill 1–2 drops of 0.5%
strength into each nostril up to 3 or 4 times daily when
required
Do not use for more than 7 days