Magnesium Sulfate
Active ingredient · 5 therapeutic classes
Sold as Epsom Salt
- Drug class
- Osmotically Acting Laxatives
- Availability
- Over-the-counter
- Routes
- Intramuscular, Intravenous, Oral, Topical
- Markets covered
- 3
- Products on record
- 14
- FDA reports (12 mo)
- 933
Overview
Magnesium Sulfate is an active pharmaceutical ingredient in the Osmotically Acting Laxatives group (A06AD). The information below is compiled per regulator from the product labels on record, with direct links to the original documents.
Regulatory status by market
| Market | Regulator | Products | Last revision |
|---|---|---|---|
| CA Canada | Health Canada | 7 | April 22, 2026 |
| US United States | FDA | 4 | February 9, 2026 |
| GB United Kingdom | MHRA | 3 | April 10, 2026 |
CACanada· Health Canada
7 products
Uses
3 Pediatrics 05/2025 TABLE OF CONTENTS Sections or subsections that are not applicable at the time of authorization are not listed. RECENT MAJOR LABEL CHANGES ........................................................................................................
2 TABLE OF CONTENTS .......................................................................................................................... 2 PART I: HEALTH PROFESSIONAL INFORMATION ..................................................................................
4 1 INDICATIONS ......................................................................................................................... 1 Pediatrics ...............................................................................................................................
2 Geriatrics ............................................................................................................................... 4 2 CONTRAINDICATIONS ............................................................................................................
USUnited States· FDA
4 products
Uses
Uses prevents cramps and spasms releases muscle tightness relieves muscle soreness
How to take
GBUnited Kingdom· MHRA
3 products
Uses
Treatment of magnesium deficiency in hypomagnesaemia where the oral route of administration may be inappropriate. To prevent further seizures associated with eclampsia.
How to take
Drug interactions
Known interactions involving Magnesium Sulfate. Select one for details. This list is informational and not a complete interaction checker.
Interaction data compiled from DDInter (academic, CC-BY). Severity classification only - this is not a complete interaction checker and not medical advice.
Sources & citations
- [1]Health Canada (DPD) · 02139499 · revised June 9, 2025
- [2]FDA DailyMed · 09bd49cd-ace8-49… · revised September 26, 2024 [PDF]
- [3]MHRA (UK) · PL120640048 · revised April 10, 2026
- [4]OpenFDA adverse-event reports (US), 12 months ending June 4, 2026.
Information on this page is compiled from public regulatory records. Drugvu is not affiliated with any regulator or pharmaceutical manufacturer. This is not medical advice. Always consult a qualified healthcare professional.