Magnesium Citrate Shortage Update: What Patients Need to Know in 2026

If you've been searching for magnesium citrate and coming up empty at your local pharmacy, you're not alone in your concern. Let's clear up the confusion with the most current information available.

Is Magnesium Citrate in an Official Shortage in 2026?

No. The FDA's official drug shortage database does not list magnesium citrate as a drug in shortage as of 2026. Magnesium citrate is an OTC product made by multiple manufacturers (including Humco, Braintree Laboratories, and numerous generic makers), with no single point of failure in its supply chain. Production remains stable, and distribution through major pharmacy chains — CVS, Walgreens, Walmart, Rite Aid, Target — continues without disruption.

Why Patients Are Sometimes Unable to Find It

While no national shortage exists, several factors can cause your local pharmacy to be out of stock:

• Colonoscopy prep season: GI practices often schedule colonoscopies in clusters, and when patients all receive the same prep instructions, nearby pharmacies can sell out within days.
• Wellness supplement demand: Growing interest in magnesium for sleep and stress relief has increased sales of all magnesium supplement forms, sometimes outpacing a store's regular stock order.
• Holiday and seasonal spikes: Constipation is more common after major holidays, driving up demand for all laxatives including magnesium citrate.
• Reorder delays: Smaller independent pharmacies may experience a 1–3 day gap between selling out and receiving their next shipment.

Historical Context: Has Magnesium Citrate Ever Been in Shortage?

Magnesium citrate has never appeared in the FDA's drug shortage database as a critical drug shortage the way other medications have. Unlike prescription drugs such as amphetamines (Adderall) or certain injectables, magnesium citrate has multiple manufacturers and a straightforward supply chain. The key difference: it's an OTC product with no prescription requirement, which means there are no prescribing bottlenecks and a wide distribution network.

What Patients Should Do Right Now

If you're having trouble finding magnesium citrate:

1. Check a different type of store — grocery stores (Kroger, Publix, H-E-B) and big-box retailers (Walmart, Target) carry it independently of pharmacy supply chains.
2. Look for the same product under a different brand — Citroma, Equate, Up & Up, GoodSense, CVS Health Brand all contain magnesium citrate.
3. Use medfinder.com — a service that calls pharmacies near you to find which ones have your medication in stock, then texts you the results.
4. If it's for colonoscopy prep and you can't find it anywhere, call your GI doctor's office before switching — they can authorize an alternate prep protocol.

39,483+ patients found their medications in stock

39K+

Find Magnesium Citrate In Stock Today →

What to Do If You Need It Urgently (Tonight)

If you need urgent constipation relief tonight and cannot find magnesium citrate, consider these OTC alternatives that provide similar onset times (30 minutes to 6 hours):

• Milk of Magnesia (magnesium hydroxide) — nearly identical mechanism and speed; same kidney cautions apply.
• Bisacodyl suppository (Dulcolax Suppository) — works in 15–60 minutes, no kidney concerns.
• Fleet Glycerin Suppository — fastest option, typically 15 minutes to 1 hour.

The Bottom Line

There is no national shortage of magnesium citrate in 2026. If you can't find it at your first-choice pharmacy, the fix is usually simple: check nearby stores or look for equivalent store brands. For ongoing trouble, review our full guide to alternatives to understand your options.