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Magnesium Chloride With Calcium

Generic name: calcium carbonate and magnesium chloride

Brand names: Mag64, MagDelay, Magnesium Chloride With Calcium, Nu-Mag, Slow Magnesium Chloride with Calcium, Slow-Mag, SlowMag Muscle + Heart

Last updated November 2, 2026 0 views
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What is Magnesium Chloride With Calcium?

Calcium and magnesium are minerals that occur naturally. Calcium is essential for building and keeping bones strong. Magnesium helps keep muscles working properly and supports a normal heart rhythm.

Magnesium Chloride With Calcium is a combination medicine used as a supplement. It is taken when your diet does not supply enough of these minerals or when they are lost through sweating.

Magnesium Chloride With Calcium may also be used for reasons not mentioned in this medication guide.

This section was rewritten for readability and reviewed for meaning.

How should I take Magnesium Chloride With Calcium?

Use exactly as directed on the label, or as prescribed by your doctor.

Swallow the tablet whole and do not crush, chew, or break it.

Store at room temperature away from moisture and heat.

This section was rewritten for readability and reviewed for meaning.

Warnings

Follow all instructions on your medicine label and package. Inform each of your healthcare providers about all your medical conditions, allergies, and all medicines you are taking.

This section was rewritten for readability and reviewed for meaning.

Before taking this medicine

You should not use Magnesium Chloride With Calcium if you have ever had an allergic reaction to an antacid or vitamin/mineral supplement that contains calcium carbonate or magnesium chloride.

Ask a doctor or pharmacist if this medicine is safe to use if you have:

  • kidney disease;
  • a history of kidney stones;
  • heart disease; or
  • a blockage in your intestines.

Ask a doctor before using this medicine if you are pregnant or breastfeeding. Your dose needs may be different during pregnancy or while you are nursing.

This section was rewritten for readability and reviewed for meaning.

Magnesium Chloride With Calcium side effects

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

Magnesium Chloride With Calcium may cause serious side effects. Stop using Magnesium Chloride With Calcium and call your doctor immediately 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 of Magnesium Chloride With Calcium 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. You may report side effects to FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

What happens if I miss a dose?

Since Magnesium Chloride With Calcium is used as needed, you might not have a specific dosing schedule. If you miss a dose and it’s nearly time for your next dose, just skip the missed dose. Do not take two doses at once.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Avoid taking other medicines at the same time you take Magnesium Chloride With Calcium.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect Magnesium Chloride With Calcium?

Calcium carbonate can make it more difficult for your body to absorb some medications, which can reduce their effectiveness. If you take other medicines, take your Magnesium Chloride With Calcium dose 2 hours before or 2 hours after taking the other medicine.

Inform your doctor about all your other medicines, especially:

  • an antibiotic;
  • heart or blood pressure medicine; or
  • medicine for osteoporosis or Paget's disease of bone—Actonel, Boniva, Fosamax, Reclast, Zometa, and others.

This list is not complete. Other medications may interact with Magnesium Chloride With Calcium, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.