Mag-Ox 400 Side Effects

Generic name: magnesium oxide

Note: This document contains side effect information about magnesium oxide. Some dosage forms listed on this page may not apply to the brand name Mag-Ox 400.

Applies to magnesium oxide: oral capsule, oral tablet.

Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.

Stop using magnesium oxide (the active ingredient contained in Mag-Ox 400) and call your doctor at once if you:

• have rectal bleeding; or

• do not have a bowel movement after using magnesium oxide as a laxative.

Common side effects may include:

• nausea, vomiting;

• diarrhea; or

• stomach pain, loss of appetite.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to magnesium oxide: compounding powder, oral capsule, oral tablet.

Metabolic

Magnesium toxicity symptoms may include: hypotension, nausea, vomiting, facial flushing, urine retention, ileus, depression, lethargy, muscle weakness, respiratory depression, arrhythmia, cardiac arrest, coma, and death.^[Ref]

Frequency not reported: Hypermagnesemia, magnesium toxicity^[Ref]

Gastrointestinal

Frequency not reported: Diarrhea, nausea, abdominal cramping^[Ref]

Further information

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