Why Is Magnesium Chloride So Hard to Find? [Explained for 2026]

Updated:

February 24, 2026

Author:

Peter Daggett

Summarize this blog with AI:

Wondering why Magnesium Chloride is so hard to find in 2026? Learn what's behind the shortage, which forms are affected, and how to find it in stock.

Why Is Magnesium Chloride So Hard to Find Right Now?

If you've recently tried to fill a prescription for Magnesium Chloride — or even pick up a bottle of Slow-Mag at your local pharmacy — you may have been told it's out of stock. You're not alone. Thousands of patients across the country have been struggling to find Magnesium Chloride in 2026, and the reasons behind the shortage are more complicated than you might think.

In this article, we'll explain what Magnesium Chloride is, why it's been so difficult to find, and what steps you can take to get the medication you need.

What Is Magnesium Chloride?

Magnesium Chloride is a mineral supplement used to treat and prevent low magnesium levels in the body, a condition known as hypomagnesemia. Magnesium is essential for hundreds of processes in your body, including nerve function, muscle contraction, heart rhythm, and bone health.

Magnesium Chloride is available in several forms:

  • Delayed-release oral tablets — sold under brand names like Slow-Mag and Mag-64
  • Injectable solution — used in hospitals for severe magnesium deficiency
  • Oral capsules and liquids — available as over-the-counter supplements

It belongs to the mineral and electrolyte supplement drug class and is not a controlled substance. Many patients take it daily to manage conditions like muscle cramps, migraines, heart arrhythmias, or general magnesium deficiency.

Why Is Magnesium Chloride Hard to Find? 4 Key Reasons

1. Ongoing Injectable Supply Shortages

The most significant supply issue has been with injectable Magnesium Chloride (the 200 mg/mL solution used in hospitals and clinics). Since mid-2023, multiple manufacturers — including American Regent and Fresenius Kabi — have experienced production delays. The FDA has listed injectable Magnesium Chloride on its Drug Shortage Database intermittently over the past two years.

When hospitals can't get the injectable form, they sometimes turn to oral formulations as a bridge, which puts additional pressure on the oral supply chain.

2. Increased Demand for Magnesium Supplements

Awareness of magnesium deficiency has surged in recent years. Studies suggest that nearly 50% of Americans don't get enough magnesium from their diet. Social media, wellness influencers, and healthcare providers have all helped drive demand for magnesium supplements — including Magnesium Chloride specifically, which is valued for its high bioavailability.

3. Manufacturing and Raw Material Challenges

Pharmaceutical-grade Magnesium Chloride requires specific manufacturing processes and quality controls. Supply chain disruptions — from raw material sourcing to packaging — have affected production timelines for both brand-name and generic products.

4. Limited Number of Manufacturers

Unlike some common medications with dozens of generic manufacturers, the injectable form of Magnesium Chloride is produced by a relatively small number of companies. When even one manufacturer experiences a delay, it can have a ripple effect across the entire market.

Which Forms of Magnesium Chloride Are Most Affected?

The injectable form has been the most impacted by shortages. If you rely on IV or IM Magnesium Chloride treatments, your healthcare provider may need to explore alternatives or source from specialty distributors.

The oral supplement forms — including Slow-Mag and generic delayed-release tablets — are generally more available, but stock levels can vary by region and pharmacy. Some patients have reported difficulty finding specific brands or formulations at their regular pharmacy.

What You Can Do to Find Magnesium Chloride

Use Medfinder to Check Availability

The fastest way to find Magnesium Chloride in stock near you is to use Medfinder. Medfinder shows you real-time availability at pharmacies in your area, so you can skip the guesswork and phone calls.

Call Independent and Compounding Pharmacies

Chain pharmacies often share the same supply limitations. Independent pharmacies and compounding pharmacies may use different distributors and could have stock when others don't. It's worth making a few calls.

Ask Your Doctor About Alternatives

If you can't find Magnesium Chloride, there are several other magnesium formulations that may work for you. Magnesium Oxide, Magnesium Citrate, and Magnesium Glycinate are all widely available alternatives your doctor can help you evaluate.

Check Online Retailers

For the OTC supplement form, online retailers like Amazon, Walmart.com, and Vitacost often have Magnesium Chloride tablets in stock even when local pharmacies don't. Prices typically range from $8 to $25 for a 60-count bottle.

Talk to Your Pharmacist About Substitutions

Your pharmacist can often suggest equivalent products or help you find a comparable Magnesium Chloride formulation from a different manufacturer. Don't hesitate to ask — they deal with shortages regularly and may have creative solutions.

Final Thoughts

Finding Magnesium Chloride in 2026 can be frustrating, but it's not impossible. The shortage primarily affects the injectable form, while oral supplements remain more accessible — though they can be harder to find in certain areas. By using tools like Medfinder, exploring independent pharmacies, and discussing alternatives with your doctor, you can stay on top of your magnesium needs.

For more tips on locating this medication, check out our guide on how to find Magnesium Chloride in stock near you. And if cost is a concern, don't miss our article on how to save money on Magnesium Chloride.

Is Magnesium Chloride on backorder in 2026?

The injectable form of Magnesium Chloride (200 mg/mL) has been on and off the FDA Drug Shortage list since 2023. Oral supplement forms like Slow-Mag are generally available but may be out of stock at some pharmacies due to increased demand.

Why can't I find Slow-Mag at my pharmacy?

Slow-Mag (a popular brand of Magnesium Chloride delayed-release tablets) may be temporarily out of stock due to high demand and supply chain challenges. Try checking independent pharmacies, online retailers, or use Medfinder to locate it nearby.

Can I get Magnesium Chloride without a prescription?

Yes. Oral Magnesium Chloride supplements are available over the counter at most pharmacies and online retailers. The injectable form, however, requires a prescription and is administered by healthcare professionals.

How long will the Magnesium Chloride shortage last?

It's difficult to predict an exact end date. The injectable shortage has persisted intermittently since 2023. The FDA continues to monitor the situation and work with manufacturers to restore supply. Oral forms are expected to remain generally available.

Why waste time calling, coordinating, and hunting?

You focus on staying healthy. We'll handle the rest.

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