Updated: February 1, 2026

Levothyroxine Shortage Update: What Patients Need to Know in 2026

Author

Peter Daggett

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Is Levothyroxine in Shortage Right Now in 2026?
A History of Levothyroxine Shortages
Why Does Levothyroxine Keep Running Short?
What Should Patients Do Right Now?
What NOT to Do During a Shortage

Levothyroxine shortages have disrupted patients for years. Here's the latest 2026 update on availability, what's causing it, and how to protect your prescription.

Levothyroxine has been one of the most prescribed medications in the U.S. for decades — and it's also been one of the most disrupted by supply chain problems. If you're one of the estimated 23 million Americans on thyroid hormone replacement therapy, you need to know the current state of availability in 2026.

Is Levothyroxine in Shortage Right Now in 2026?

As of 2026, generic levothyroxine oral tablets are not on the FDA's official national drug shortage list. However, the FDA's list often lags behind real-world pharmacy experience, and the picture on the ground is more complicated.

Generic tablets: Generally available at most pharmacies, but certain strengths (137 mcg, 175 mcg, 200 mcg, 300 mcg) continue to be intermittently out of stock at chain pharmacies.

Levoxyl (brand-name, Pfizer): Not on the FDA shortage list, but many chain pharmacies do not stock it as a standard item due to low prescription volume. Independent pharmacies are a better bet.

Synthroid (brand-name, AbbVie): Generally widely available. The Synthroid Delivers direct-mail program provides consistent supply.

Injection formulation: Levothyroxine sodium injection (used for myxedema coma) does have an active ASHP shortage listing for the Sagent 500 mcg vial as of 2025-2026. Other manufacturers have supply available.

A History of Levothyroxine Shortages

Levothyroxine has a troubled supply history that helps explain why patients and providers remain vigilant:

2013: Pfizer recalled all strengths of Levoxyl and stopped shipments in February 2013. The drug was not available again until 2014, leaving brand-dependent patients scrambling for alternatives.

2017: Hurricanes Irma and Maria devastated Puerto Rico's pharmaceutical manufacturing facilities. Levothyroxine was among the dozens of drugs affected. Walmart temporarily doubled cash prices — from $4 to $9 for a 30-day supply and from $10 to $24 for a 90-day supply.

2025 (March): Kaiser Permanente notified members of a critical reduction in the supply of generic levothyroxine tablets from their preferred manufacturer due to manufacturing issues. Kaiser restricted patients to 30-day fills instead of 90-day supplies.

2026: No active FDA shortage for generic oral tablets, but localized and strength-specific availability issues persist.

Why Does Levothyroxine Keep Running Short?

Several structural factors make levothyroxine vulnerable to supply disruptions:

Narrow therapeutic index requiring strict manufacturing quality control

Concentrated manufacturing in vulnerable geographic regions (Puerto Rico, overseas)

Multiple dosage strengths, each requiring separate production runs

Complex brand-switching rules that make flexibility difficult

Pharmacy stocking decisions that prioritize high-volume strengths and brands

What Should Patients Do Right Now?

Don't wait until you're out. Refill your levothyroxine when you have 10-14 days of supply remaining. Use medfinder.com to find pharmacies with your strength in stock before your current supply runs out.

Request a 90-day supply. A larger supply means fewer refill moments and more buffer time if availability tightens.

Know your backup options. Discuss with your doctor in advance what you would do if your specific product became unavailable. Having a plan before a crisis is far better than improvising in one.

Try multiple pharmacy types. Independent pharmacies, Costco, Sam's Club, and mail-order pharmacies often have better access to specific strengths than chain pharmacies.

What NOT to Do During a Shortage

Do NOT skip doses without consulting your doctor

Do NOT take a different brand or dose without physician guidance

Do NOT use thyroid supplements sold online as a substitute for prescription medication

Do NOT take someone else's prescription

For a full breakdown of your options if you truly cannot fill your prescription, see alternatives to levothyroxine if you can't fill your prescription.

Frequently Asked Questions

Generic levothyroxine oral tablets are not on the FDA's official shortage list as of 2026. However, patients continue to report localized shortages for certain strengths (137, 175, 200, 300 mcg) and difficulty finding brand-name Levoxyl at chain pharmacies. The injectable formulation has an active ASHP shortage listing. Overall availability is much better than during the 2017 hurricane-related shortage.

In March 2025, Kaiser Permanente notified members of a critical reduction in generic levothyroxine tablet supply from their preferred manufacturer due to manufacturing issues. This led Kaiser to restrict dispensing to 30-day supplies instead of 90-day supplies. Additionally, some manufacturers have experienced routine quality control and production volume issues that create periodic regional shortages.

The strengths most likely to be out of stock are the less common ones: 137 mcg, 175 mcg, 200 mcg, and 300 mcg tablets. High-demand strengths like 50 mcg, 75 mcg, 100 mcg, and 125 mcg are generally readily available at most pharmacies. Brand-name Levoxyl in any strength can be hard to find at chain pharmacies.

Levothyroxine has had periodic supply disruptions for over a decade. Major events include the 2013 Levoxyl recall (which lasted nearly a year), the 2017 Puerto Rico hurricane-related shortage, a 2025 manufacturing-related supply reduction, and ongoing localized availability issues in 2026. The drug has never been in a sustained national shortage of all forms simultaneously.

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