Answer
Epsom Salts BP contains magnesium sulfate heptahydrate, but it is a crystal product for specified oral or external uses. It must not be substituted for sterile injection or infusion products.
Sources for this answer
- Epsom Salts BPemc · SmPC Current selected SmPC · Version 6
- Magnesium Sulfate 50% w/v Solution for Injection/Infusion