What is Magnesium Chloride: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Magnesium Chloride overview

BRAND NAMES:

  • Chloromag, Chromium Novaplus, Feraheme, Ferrlecit, Infed, Iodopen, LiquiLift Trace Kit, Multitrace-4 Neonatal, Multitrace-4 Pediatric, Multitrace-4 Regular, Multitrace-5, Multitrace-5 Concentrate, PremierPro Rx Ferrlecit, PremierPro Rx Magnesium Sulfate, PremierPro Rx Magnesium Sulfate-Dextrose

Generic Names:

  • Magnesium Chloride

Uses:

  • Provides your body with needed minerals when you are dehydrated or cannot eat food by mouth. You also may need this medicine if you have certain nutrition problems, or serious medical problems such as AIDS, cancer, or burns.

Therapeutic Classes:

  • Antidote, Anticonvulsant, Laxative, Hyperosmotic, Nutritive Agent, Parenteral Mineral-Trace Mineral, Renal-Urologic Agent

Forms:

  • Injectable

How it’s taken:

  • By injection

What is Magnesium Chloride used for?

What form(s) does Magnesium Chloride come in

  • Injectable

What are common Magnesium Chloride doses?

  • Vial 50ML of 200MG/ML

  • Bottle 60 Tablets Delayed Release

  • Bottle 500GM of

How to take Magnesium Chloride

  • Injection routeYour doctor will prescribe your dose and schedule. This medicine is given through a needle placed in a vein.

  • Injection routeA nurse or other health provider will give you this medicine.

  • Injection routeYou may be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more medicine or use it more often than your doctor tells you to. You will need to add this medicine with another solution before using it.

  • Do not use this medicine if the liquid looks cloudy or has solid pieces floating in it. Do not use the medicine if it is leaking from the bag or container. If your medicine comes in a single-dose vial, throw away any medicine that is left over after you have removed your dose from the vial. Carefully follow all instructions for preparing and using this medicine.

  • Injection routeYou may be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more medicine or use it more often than your doctor tells you to. You will need to add this medicine with another solution before using it.

  • Injection routeA nurse or other health provider will give you this medicine.

  • Injection routeYour doctor will prescribe your dose and schedule. This medicine is given through a needle placed in a vein.

  • Do not use this medicine if the liquid looks cloudy or has solid pieces floating in it. Do not use the medicine if it is leaking from the bag or container. If your medicine comes in a single-dose vial, throw away any medicine that is left over after you have removed your dose from the vial. Carefully follow all instructions for preparing and using this medicine.

What to do if you miss a dose of Magnesium Chloride

  • Injection routeThrow away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets. Follow any special instructions about how to throw away empty medicine bottles, tubes, or bags.

  • Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • You must use this medicine on a fixed schedule. Call your doctor or pharmacist if you miss a dose.

Magnesium Chloride contraindications

  • This medicine is ordered by a doctor to provide nutrients that your body needs. Unless your doctor tells you otherwise, there is no reason why you should not receive this medicine.

Magnesium Chloride warnings

  • Pain, redness, or swelling where the medicine is given.

  • Sudden sweating, flushing (heat and redness to the face and upper body), or chills.

  • Yellowing of your skin or the whites of your eyes.

  • Vomiting blood.

  • Giving this medicine too quickly may be dangerous, even life-threatening. Follow the instructions from your doctor or pharmacist giving this medicine. Always use the IV pump and other equipment as recommended by your doctor or pharmacist.

  • Muscle twitching.

  • Numbness or tingling in your hands, feet, or lips.

  • Swelling in your hands, ankles, or feet, or rapid weight gain.

  • Trouble urinating, or a change in how much or how often you urinate.

  • Make sure your doctor knows if you are pregnant or breast feeding. Your mineral needs may be different than normal.

  • Make sure your doctor knows if you have liver problems or kidney disease. Tell your doctor if you have diabetes, heart disease, heart rhythm problems, or if you are on a low-salt diet. Make sure your doctor knows about any other health problems you may have.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Magnesium Chloride interactions

  • Make sure your doctor knows if you are also using a heart medicine called digoxin (Lanoxin®, Digitek®).

  • Tell your doctor if you use anything else that makes you sleepy. Some examples are allergy medicine, narcotic pain medicine, and alcohol.

  • Do not use any other mineral supplements or electrolytes (such as GoLYTELY®, Pedialyte®, or Gatorade®) without asking your doctor first.

  • Giving this medicine too quickly may be dangerous, even life-threatening. Follow the instructions from your doctor or pharmacist giving this medicine. Always use the IV pump and other equipment as recommended by your doctor or pharmacist.

Magnesium Chloride side effects

Serious Side Effects

  • Vomiting blood.

  • Numbness or tingling in your hands, feet, or lips.

  • Swelling in your hands, ankles, or feet, or rapid weight gain.

  • Muscle twitching.

  • Sudden sweating, flushing (heat and redness to the face and upper body), or chills.

  • Lightheadedness or fainting.

  • Yellowing of your skin or the whites of your eyes.

  • Confusion, weakness, trouble moving, or seizures.

  • New coughing or trouble breathing.

  • Heartbeat that is uneven or too fast.

  • Trouble urinating, or a change in how much or how often you urinate.

  • Pain, redness, or swelling where the medicine is given.

Less Serious Side Effects

  • Blurred vision.

  • Muscle cramps.

  • Dry mouth, increased thirst, diarrhea, stomach pain, nausea or vomiting.