Epsom Salt Side Effects

Generic name: magnesium sulfate

Medically reviewed by Drugs.com. Last updated on Sep 11, 2023.

Note: This document provides detailed information about Epsom Salt Side Effects associated with magnesium sulfate. Some dosage forms listed on this page may not apply specifically to the brand name Epsom Salt.

Applies to magnesium sulfate: crystal, foam, powder, powder for solution, powder for suspension, spray.

Serious side effects of Epsom Salt

Along with its needed effects, magnesium sulfate (the active ingredient contained in Epsom Salt) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking magnesium sulfate:

Incidence not known

• confusion
• dizziness or lightheadedness
• fast, slow, or irregular heartbeat
• low blood pressure
• muscle weakness
• skin infection after soaking
• sleepiness

Other side effects of Epsom Salt

Some side effects of magnesium sulfate may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known

• diarrhea
• skin irritation after soaking

For healthcare professionals

Applies to magnesium sulfate: injectable solution, intravenous solution, oral and topical powder for reconstitution.

Metabolic adverse events

• Frequency not reported: Hypermagnesemia (signs include drowsiness, loss of reflexes, nausea, vomiting, flushing, thirst, hypotension, hypothermia, bradycardia, confusion, electrolyte and fluid abnormalities, slurred speech, muscle weakness, muscle paralysis, blurred or double vision, CNS depression, respiratory depression, respiratory paralysis, circulatory collapse, renal failure, coma, cardiac arrhythmias, cardiac arrest), hypocalcemia with tetany secondary to hypermagnesemia, alkalosis^[Ref]

Gastrointestinal

• Frequency not reported: Colic, gastrointestinal irritation, watery diarrhea, paralytic ileus^[Ref]

Hypersensitivity

• Frequency not reported: Hypersensitivity reactions^[Ref]

Local

• Frequency not reported: Irritation and pain at the injection site^[Ref]

Further information

Epsom Salt side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer