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Magnesium chloride

INDICATIONS As an electrolyte replenisher in magnesium deficiencies.

Prescription medicine Intravenous Safety alerts on record

How to use Magnesium chloride

What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.

Who it is for

INDICATIONS As an electrolyte replenisher in magnesium deficiencies.

How to take it and how often
  • For intravenous infusion: 4 grams in 250 mL of 5% Dextrose Injection, at a rate not exceeding 3 mL per minute
  • Serum magnesium levels should serve as a guide to continued dosage
Talk to a doctor first if

Magnesium Chloride Injection should not be administered if there is renal impairment, marked myocardial disease or to comatose patients.

Warnings

Do not use if a precipitate is present.

Possible side effects

Flushing, sweating, sharply lowered blood pressure, hypothermia, stupor and ultimately respiratory depression.

Pregnancy and breastfeeding

Pregnancy Animal reproduction studies have not been conducted with magnesium chloride. It is also not known whether magnesium chloride can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Magnesium Chloride should be given to a pregnant woman only if clearly needed.

If you miss a dose

Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2021-10-15.

Registered products

United States (FDA)

Magnesia MuriaticaMAGNESIUM CHLORIDE 5 [hp_C]/5[hp_C] · Pellet · Boiron
NDC 0220-3254Label
Tpn ElectrolytesSODIUM CHLORIDE 321 mg/20mL, CALCIUM CHLORIDE 331 mg/20mL, POTASSIUM CHLORIDE 1491 mg/20mL · Injection, Solution, Concentrate · Hospira, Inc.
NDC 0409-5779Label
Dianeal Low Calcium With DextroseDEXTROSE MONOHYDRATE 2.5 g/100mL, SODIUM CHLORIDE 538 mg/100mL, SODIUM LACTATE 448 mg/100mL · Injection, Solution · Vantive US Healthcare LLC
NDC 0941-0430Label
Dianeal Low Calcium With DextroseDEXTROSE MONOHYDRATE 1.36 g/100mL, SODIUM CHLORIDE 538 mg/100mL, SODIUM LACTATE 448 mg/100mL · Injection, Solution · Vantive US Healthcare LLC
NDC 0941-0733Label
Prismasol Bgk2/0 Bgk2/0MAGNESIUM CHLORIDE 2.03 g/L, ANHYDROUS DEXTROSE 20 g/L, LACTIC ACID 5.4 g/L · Injection · Vantive US Healthcare LLC
NDC 24571-102Label

Nigeria (NAFDAC)

NAFDACSkinoRita Cream A4-100358

Other countries: check your pack's registration number and we point you to your regulator.

Safety alerts and recalls

Magnesium Chloride, 6-Hydrate, Crystal, 500G per bottle, Bulk active pharmaceutical ingredient (API), Avantor Performance Materials, LLC, 100 Matsonford Road, Suite 200, Radnor, PAU.S. FDA Class III
31 Mar 2026 · Avantor Performance Materials LLC · OngoingSubpotent drug
Magnesium Chloride for Injection, all strengths and presentations, GenoGenix, LLC, 2840 NW 2nd Ave Ste 204 Boca Raton, FL 33431-6692.U.S. FDA Class II
30 Jul 2025 · GenoGenix LLC · OngoingLack of Assurance of Sterility
MAGNESIUM CHLORIDE HEXAHYDRATE-PF- 200MG/ML (5ML VIAL) INJECTABLE, Rx Only, Pharmacy Innovations, 2936 W 17th St., Erie, PA.U.S. FDA Class II
22 Dec 2022 · Pharmacy Innovations · TerminatedLack of Assurance of Sterility: FDA inspection revealed insanitary conditions at the facility.
Magnesium Chloride, 200 mg/mL, Multi-Dose 30 mL vial, Rx Only, Olympia Pharmaceuticals, 6700 Conroy Rd., Ste. 155 Orlando, FL 32835. NDC 73198-0072-30.U.S. FDA Class II
9 May 2022 · Olympia Compounding Pharmacy dba Olympia Pharmacy · CompletedLack of assurance of sterility.

A recall usually affects certain batches only. Compare the lot number on your pack.

Check your pack of Magnesium chloride

Or take photos of the pack
3 free checks left today Official sources: U.S. FDA · EMA (EU) · NAFDAC · WHO alerts

Questions about Magnesium chloride

What is Magnesium chloride used for?

INDICATIONS As an electrolyte replenisher in magnesium deficiencies. (From the official U.S. FDA label.)

How do I take Magnesium chloride?

Follow your prescription or the leaflet in your pack. The official label says: For intravenous infusion: 4 grams in 250 mL of 5% Dextrose Injection, at a rate not exceeding 3 mL per minute. Serum magnesium levels should serve as a guide to continued dosage.…

Do I need a prescription for Magnesium chloride?

Usually yes. Magnesium chloride is a prescription medicine in most countries. Rules differ by country.

What brands contain Magnesium chloride?

Magnesium chloride is sold under names such as Clinimix E 4.25/10, Extraneal, Aminosyn Ii 8.5 % With Electrolytes, Sulfite-free, Aminosyn 8.5 % With Electrolytes, Sulfite-free, Isolyte S In 5 % Dextrose, Normosol-r In 5 % Dextrose, Slow-mag Reformulated Feb 2012, Nutrilyte Ii. Brand names differ between countries.

How can I check that my Magnesium chloride is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.