How to Find Lentocilin in Stock Near You (Tools + Tips)

Finding Lentocilin (penicillin G benzathine) in stock is one of the most frustrating medication challenges patients and providers face in 2026. Unlike most drugs you'd pick up at a pharmacy, Lentocilin is an injectable antibiotic administered only by trained healthcare professionals — which means finding it requires locating a facility that both has it in stock AND can administer it. But there are practical strategies that work. Here's a step-by-step guide.

Why Is It So Hard to Find?

Lentocilin is a temporarily imported version of penicillin G benzathine, brought into the U.S. by Mark Cuban's Cost Plus Drug Company specifically to address the severe shortage of Bicillin L-A — the domestic equivalent. The Bicillin L-A shortage began in 2023 and the recovery date has been pushed to Q4 2027. Lentocilin itself is distributed through limited wholesale channels, meaning it's not at every clinic or pharmacy.

For a deeper look at why this shortage is happening, see our article: Why Is Lentocilin So Hard to Find? [Explained for 2026].

Step 1: Start With Your Local Public Health Department or STI Clinic

The single most effective place to start is your local public health department or sexually transmitted infection (STI) clinic. During the Bicillin L-A and Lentocilin shortage, the CDC and state health departments have directed priority allocations of available penicillin G benzathine products to these settings — particularly for:

Pregnant women with syphilis

Newborns with or exposed to congenital syphilis

Patients with syphilis who cannot take alternative antibiotics

Call your county or city health department directly and ask about penicillin G benzathine availability. You can find your local health department at naccho.org (National Association of County and City Health Officials).

Step 2: Use medfinder to Search Pharmacies and Clinics Near You

medfinder is a paid service that contacts pharmacies and healthcare facilities near you to check which ones have your medication in stock. Instead of spending hours calling locations yourself, medfinder does the calling and texts you the results. This is particularly useful for a medication like Lentocilin, where availability can change week to week.

To use medfinder, simply provide your medication name (Lentocilin or penicillin G benzathine), your dose, and your location. medfinder will reach out to local pharmacies and clinics and report back to you with which ones have the drug available.

Step 3: Ask Your Doctor to Contact Hospital Pharmacy or ID Specialist

Hospital pharmacies, especially at academic medical centers and large health systems, sometimes have access to medications that private pharmacies or outpatient clinics don't. If your outpatient provider is having trouble sourcing Lentocilin, ask them to reach out to their hospital pharmacy system or to consult an infectious disease (ID) specialist who may have better contacts within the supply chain.

Step 4: Call the Distributor Directly (For Providers)

Lentocilin's authorized distributor in the United States is TopRx. Healthcare providers and pharmacy directors can contact TopRx at 800-542-8677 or by email at STDmeds@toprx.com to inquire about availability and place orders. The Mark Cuban Cost Plus Drug Company also distributes to healthcare businesses through their marketplace. Patients should ask their provider to check these channels.

Step 5: Check Urgent Care Centers and Federally Qualified Health Centers

Federally Qualified Health Centers (FQHCs) often serve underserved populations and may receive priority access to shortage medications through government contracts. Indian Health Service facilities have also received guidance on Lentocilin administration. Some urgent care centers that regularly treat STIs may have stock. A quick call to ask about "penicillin G benzathine" or "Lentocilin" availability before traveling is always worth it.

Step 6: Ask About Alternatives If You Cannot Find It

If Lentocilin and Bicillin L-A are both unavailable in your area, talk to your provider about alternatives. For non-pregnant adults with early syphilis, doxycycline (100 mg twice daily for 14 days) is the CDC's recommended substitute. For more information, see: Alternatives to Lentocilin If You Can't Fill Your Prescription.

Quick Reference: Where to Look for Lentocilin

Local public health department / STI clinic (highest priority for pregnant patients)

medfinder.com — searches nearby pharmacies and clinics for you

Hospital pharmacy — especially at academic or large health systems

TopRx — authorized distributor for providers: 800-542-8677

Federally Qualified Health Centers (FQHCs) and Indian Health Service facilities

Urgent care centers that routinely treat STIs — call ahead to check

Don't Give Up — Getting the Right Treatment Matters

Untreated syphilis can have devastating consequences, especially for pregnant women and their newborns. Don't let the shortage be a reason treatment gets delayed. Use every resource available — from public health departments to medfinder — and work closely with your provider to ensure you get treated as quickly as possible.