Answer
Each millilitre of prochlorperazine mesilate Stemetil injection contains 1 mg sodium sulphite and 0.75 mg sodium metabisulphite.
Sources for this answer
- Stemetil 12.5mg/ml InjectionAtnahs Pharma UK Ltd · emc · SmPC §2 Qualitative and quantitative composition · Version 1Document updated
Sources checked