Adacel Shortage Update: March 2026

If you've been following the Adacel availability situation, here's the latest: while Adacel is not in an official FDA-listed drug shortage, patients across the United States continue to face difficulty finding this Tdap vaccine at their local pharmacies. The availability issues that began in late 2024 persist into 2026, driven by a complex chain of events in the vaccine supply landscape.

This article provides an up-to-date overview of the Adacel shortage situation, what's causing it, and practical advice for patients who need this vaccine.

Current Status: What's Happening with Adacel Supply?

Here's the situation as of early 2026:

• Adacel is still being manufactured by Sanofi Pasteur. Production has not been halted or discontinued.
• No official FDA shortage listing — Adacel does not appear on the FDA's or ASHP's drug shortage databases.
• Intermittent stock-outs are common at retail pharmacies, especially in high-demand areas.
• Demand remains elevated due to the ongoing Td vaccine shortage, which has pushed more patients toward Tdap vaccines.
• Boostrix (GSK) is also experiencing increased demand for the same reasons, though availability varies by region.

Timeline: How We Got Here

Understanding the timeline helps explain why Adacel is hard to find:

March 2024: TdVax Discontinued

MassBiologics, a nonprofit vaccine manufacturer, permanently stopped producing TdVax — one of only a few Td (tetanus-diphtheria) vaccines available in the U.S. This left Tenivac (Sanofi Pasteur) as essentially the sole Td vaccine on the market.

Mid-2024: CDC Issues Substitution Guidance

As Td supplies tightened, the CDC issued guidance recommending healthcare providers use Tdap vaccines (Adacel and Boostrix) as substitutes for Td "whenever possible." This was a practical solution, but it shifted enormous demand onto the Tdap supply chain.

Late 2024 - 2025: Demand Surge Hits Adacel

Pharmacies, hospitals, and clinics began using Adacel in situations previously handled by Td — routine adult boosters, wound care tetanus prophylaxis, and more. This increased demand outpaced existing production capacity and distribution planning.

October 2025: FDA Approves Repeat Adacel Dosing

The FDA approved updated labeling for Adacel allowing repeat vaccination after 8 years, further expanding the eligible patient population and contributing to sustained demand.

2026: Ongoing Availability Challenges

Sanofi Pasteur has been working to increase production, but vaccine manufacturing takes months per batch. The situation is improving but hasn't fully normalized. For a deeper dive, read our article on why Adacel is so hard to find.

What This Means for You as a Patient

If You Need a Routine Tdap Booster

Routine Tdap boosters are important but not typically urgent. If your pharmacy doesn't have Adacel:

• Ask about Boostrix as an equivalent alternative
• Check other pharmacies — use MedFinder to search multiple locations at once
• A delay of a few weeks while you locate the vaccine is generally safe for routine boosters

If You're Pregnant

The CDC recommends a Tdap booster during weeks 27-36 of every pregnancy to pass protective antibodies to your baby. This is especially important for protecting newborns from pertussis, which can be life-threatening in young infants.

Don't delay this vaccination. If Adacel isn't available:

• Boostrix provides the same maternal protection
• Your OB-GYN office may stock Tdap directly
• Contact your health department for alternative sources

If You Need Tetanus Prophylaxis for a Wound

Emergency departments and urgent care clinics typically stock Tdap for wound care. If you sustain a wound and need tetanus protection:

• Go to your nearest emergency room or urgent care — they prioritize tetanus prophylaxis and usually have supply
• Either Adacel or Boostrix is appropriate for wound management
• In rare cases where no Tdap is available, Tetanus Immune Globulin (TIG) can provide temporary protection

If You're a Healthcare Worker

Many healthcare employers require current Tdap vaccination. If you're having trouble finding Adacel for an employer requirement:

• Check with your employer's occupational health department — they may have their own supply
• Ask about deadline flexibility while the shortage persists
• Document your efforts to obtain the vaccine in case you need an extension

Where to Look for Adacel Right Now

Here's a quick reference for where to check:

1. MedFinder — Real-time pharmacy stock searches by ZIP code
2. Chain pharmacies — CVS, Walgreens, Rite Aid, Walmart, Costco
3. Local health departments — May have public health supply
4. Hospital outpatient pharmacies — Separate supply chains from retail
5. Your doctor's office — Some practices stock vaccines on-site

For a complete walkthrough, see our guide: How to find Adacel in stock near you.

Insurance and Cost During the Shortage

The shortage doesn't change your insurance coverage. Under the ACA, Tdap vaccines remain a covered preventive service at no cost when administered by an in-network provider. This applies whether you receive Adacel or Boostrix.

If you're paying out of pocket, cash prices for Adacel typically range from $49 to $95. Discount cards from GoodRx or SingleCare may help reduce costs. For more savings strategies, check out our article on how to save money on Adacel.

When Will the Shortage End?

There's no firm end date, but several factors point toward gradual improvement:

• Sanofi Pasteur is increasing production of both Adacel and Tenivac
• Distribution patterns are normalizing as the initial demand spike from the Td substitution guidance stabilizes
• Pharmacies are adjusting ordering patterns to account for higher Tdap demand

Realistically, intermittent spot shortages may continue through 2026. The best strategy is to be proactive — search multiple sources, be flexible about which Tdap product you receive, and don't wait until the last minute.

How to Stay Updated

To keep track of the Adacel availability situation:

• Bookmark MedFinder for real-time stock checks
• Check the ASHP Drug Shortage Resource Center for official shortage listings
• Follow CDC vaccine supply updates at cdc.gov
• Ask your pharmacist to notify you when Adacel is restocked

The Bottom Line

The Adacel availability challenges of 2026 are real but manageable. The vaccine is still being made, alternatives like Boostrix exist, and multiple avenues are available to help you get vaccinated. Stay proactive, be flexible, and use tools like MedFinder to find what you need.

Your protection against tetanus, diphtheria, and pertussis is worth the extra effort. Don't let a temporary supply crunch leave you unvaccinated.