If You've Been Told Your Pharmacy Is Out of Bicillin L-A, You're Not Alone

You went to fill your prescription. The pharmacy said they don't have it. You called around — same story everywhere. If you've been trying to find Bicillin L-A (Penicillin G Benzathine) and coming up empty, you're dealing with one of the most serious drug shortages in the United States right now.

Bicillin L-A is the only FDA-approved injectable treatment for syphilis, and it's been in limited supply since mid-2023. The shortage got dramatically worse in 2025 after a major recall, and as of early 2026, supply remains extremely limited. The CDC has called this a public health concern.

In this article, we'll explain exactly what Bicillin L-A is, why it's so hard to find, and what steps you can take to get the treatment you need.

What Is Bicillin L-A?

Bicillin L-A is the brand name for Penicillin G Benzathine, a long-acting antibiotic that belongs to the natural penicillins drug class. It's given as a deep intramuscular injection — meaning a healthcare provider administers it into a large muscle, typically in the buttock area.

It's used to treat:

• Syphilis (primary, secondary, and latent stages) — the most common reason it's prescribed
• Strep throat and upper respiratory infections caused by Group A streptococci
• Rheumatic fever prevention — ongoing injections every 3-4 weeks to prevent recurrence
• Other rare infections like yaws, bejel, and pinta

What makes Bicillin L-A unique is its long-acting formulation. A single injection slowly releases penicillin into your bloodstream over 2-4 weeks, which is why it works so well for conditions like syphilis — where you need sustained antibiotic levels.

For more details on how this medication works, check out our guide: What Is Bicillin L-A? Uses, Dosage, and What You Need to Know.

Why Is Bicillin L-A So Hard to Find in 2026?

The Bicillin L-A shortage is the result of a perfect storm of factors. Here are the main reasons this medication has become so difficult to obtain:

1. There's Only One Manufacturer in the U.S.

Pfizer is the sole domestic manufacturer of Bicillin L-A. When a drug has only one maker and something goes wrong with production, there's no backup supplier to pick up the slack. This single point of failure has been a major vulnerability.

2. Syphilis Rates Have Skyrocketed

The United States is experiencing a syphilis epidemic. Infection rates have risen dramatically over the past several years, which means demand for Bicillin L-A — the gold-standard treatment — has surged. Manufacturing simply hasn't kept pace with the rising need.

3. A Major Recall Made Things Much Worse

On July 10, 2025, Pfizer issued a voluntary recall of multiple lots of Bicillin L-A (both the 1.2 million and 2.4 million unit doses) due to particulates found in the prefilled syringes. This recall pulled a significant amount of already-limited stock off shelves and out of clinics, dramatically worsening an already critical shortage.

4. Manufacturing Is Complex and Slow to Scale

Producing injectable penicillin in prefilled syringes is a specialized manufacturing process. You can't simply flip a switch and double production. Pfizer has been working to increase output, but the shortage is expected to continue through at least the third quarter of 2026.

What Can You Do If You Can't Find Bicillin L-A?

The good news is that you're not completely without options. Here's what you can do:

Use Medfinder to Search for Pharmacies With Stock

Medfinder helps you search for pharmacies that currently have medications in stock — including hard-to-find drugs like Bicillin L-A. Instead of calling pharmacy after pharmacy, you can check availability in your area from one place.

Ask About Imported Alternatives

The FDA has authorized temporary importation of equivalent medications to help fill the gap:

• Extencilline — a benzathine benzylpenicillin injection imported from Europe since January 2024
• Lentocilin — another benzathine benzylpenicillin formulation, authorized for importation in March 2026

Ask your healthcare provider or local health department if these imported alternatives are available in your area. Learn more in our article on alternatives to Bicillin L-A.

Contact Your Local Health Department

Public health departments, especially STI clinics, often receive priority allocations of Bicillin L-A and imported equivalents. If you're being treated for syphilis, your local health department may be able to help you get treated.

Talk to Your Doctor About Other Options

For some patients, alternative antibiotics like Doxycycline or Ceftriaxone may be appropriate, depending on your specific situation. However, these alternatives aren't suitable for everyone — particularly pregnant women, for whom Bicillin L-A remains the only recommended syphilis treatment. Your doctor can help determine the best option for you.

For more tips on locating this medication, read our guide: How to Find Bicillin L-A in Stock Near You.

Final Thoughts

The Bicillin L-A shortage is a real crisis — and it's particularly frustrating because this is a decades-old antibiotic that shouldn't be hard to get. But between a sole manufacturer, a nationwide syphilis epidemic, and a major product recall, the reality is that supply is extremely limited in 2026.

If you're struggling to find Bicillin L-A, don't give up. Use tools like Medfinder, talk to your healthcare provider about imported alternatives, and reach out to your local health department. Treatment for syphilis and other infections shouldn't be delayed — the sooner you get treated, the better your outcome.

For the latest on this shortage, visit our Bicillin L-A shortage update for 2026.