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Nu-Mag Side Effects

Generic name: calcium carbonate / magnesium chloride

Note: This document contains side effect information about calcium carbonate / magnesium chloride. Some dosage forms listed on this page may not apply to the brand name Nu-Mag.

Applies to calcium carbonate / magnesium chloride: oral delayed release tablet.

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

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 calcium carbonate and magnesium chloride and call your doctor at once if you have:

  • nausea, vomiting, stomach pain, loss of appetite, increased thirst or urination;

  • muscle pain or weakness, joint pain;

  • confusion, feeling tired or restless; or

  • slow heart rate, drowsiness, feeling light-headed.

Common side effects may include:

  • diarrhea;

  • constipation; or

  • upset stomach.

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

More about Nu-Mag (calcium carbonate / magnesium chloride)

Patient resources

Other brands

Slow-Mag, MagDelay, Mag 64

Related treatment guides

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.