Alternatives to Augmentin If You Can't Fill Your Prescription

Can't Find Augmentin? You Have Options

If you've been prescribed Augmentin (Amoxicillin/Clavulanate) and your pharmacy doesn't have it in stock, you may be wondering: what else can I take? The ongoing Augmentin shortage has left many patients in exactly this situation.

The good news is that several other antibiotics can treat the same types of infections. The right alternative depends on what infection you have, your medical history, and any allergies. Always talk to your doctor before switching medications—never substitute an antibiotic on your own.

In this article, we'll explain how Augmentin works, why alternatives may be needed, and the most common substitutes your doctor might consider.

What Is Augmentin and How Does It Work?

Augmentin is a combination antibiotic containing two active ingredients:

• Amoxicillin: A penicillin-type antibiotic that kills bacteria by preventing them from building their cell walls
• Clavulanate Potassium: A beta-lactamase inhibitor that protects amoxicillin from being destroyed by resistant bacteria

This combination makes Augmentin effective against a broader range of bacteria than amoxicillin alone. It's commonly prescribed for sinus infections, ear infections, lower respiratory tract infections, urinary tract infections, and skin infections. For a deeper dive, see our article on how Augmentin works.

Why You Might Need an Alternative

There are several reasons you might need a substitute for Augmentin:

• Pharmacy shortage: Your pharmacy—and nearby pharmacies—don't have it in stock
• Penicillin allergy: You're allergic to penicillin-type antibiotics
• Side effects: You've had bad reactions to Augmentin in the past (severe diarrhea is common)
• Treatment failure: Your infection hasn't responded to Augmentin

Before switching, try using Medfinder to check if another pharmacy near you has Augmentin available. If it's truly unavailable, here are the alternatives your doctor may consider.

Alternative #1: Cefdinir (Omnicef)

Drug class: Third-generation cephalosporin

What it treats: Sinus infections, ear infections, bronchitis, pneumonia, skin infections, pharyngitis

Cefdinir is one of the most common substitutes for Augmentin, especially in pediatric patients. Like Augmentin, it comes in both capsule and liquid suspension forms. It's taken once or twice daily, which can be more convenient than Augmentin's two or three daily doses.

Key considerations: Cefdinir is generally well tolerated. It can be used in patients with mild penicillin allergies (but not in those with a history of severe penicillin allergy or anaphylaxis). Common side effects include diarrhea, nausea, and vaginal yeast infections. It may turn stool reddish—this is harmless.

Cost: Generic Cefdinir typically costs $15–$40 with a discount card.

Alternative #2: Azithromycin (Zithromax, Z-Pack)

Drug class: Macrolide antibiotic

What it treats: Sinus infections, ear infections, bronchitis, pneumonia, certain skin infections

Azithromycin is famous as the "Z-Pack"—a convenient 5-day course of treatment. It works differently from Augmentin, stopping bacteria from making proteins they need to grow. It's a good option for patients who are allergic to penicillin.

Key considerations: Azithromycin doesn't cover all the same bacteria as Augmentin. Increasing bacterial resistance to macrolides means it may not work for every infection. Your doctor will consider local resistance patterns. Side effects include diarrhea, nausea, and abdominal pain. Rarely, it can cause heart rhythm problems in people with certain cardiac conditions.

Cost: Generic Azithromycin is very affordable—typically $4–$15 for a Z-Pack with a discount card.

Alternative #3: Levofloxacin (Levaquin)

Drug class: Fluoroquinolone antibiotic

What it treats: Sinusitis, pneumonia, urinary tract infections, skin infections, bronchitis

Levofloxacin is a powerful broad-spectrum antibiotic that's effective against many of the same infections as Augmentin. It's taken once daily, which is convenient.

Key considerations: Fluoroquinolones carry an FDA boxed warning about serious side effects including tendon rupture, peripheral neuropathy, and central nervous system effects. Because of these risks, the FDA recommends fluoroquinolones only when no other treatment options are available for certain infections. Your doctor will weigh the benefits and risks carefully.

Cost: Generic Levofloxacin typically costs $10–$30 with a discount card.

Alternative #4: Amoxicillin (Alone)

Drug class: Penicillin-type antibiotic

What it treats: Ear infections, strep throat, urinary tract infections, dental infections, H. pylori

In some cases, plain Amoxicillin—without the clavulanate component—may be sufficient. This depends entirely on the type of infection and the bacteria causing it. Amoxicillin is less expensive and causes fewer GI side effects than Augmentin, but it won't work against beta-lactamase-producing bacteria.

Key considerations: Your doctor prescribed Augmentin (not plain Amoxicillin) for a reason. Don't switch on your own. But if the infection is likely caused by bacteria that don't produce beta-lactamase, your doctor may determine that Amoxicillin alone is adequate.

Cost: Generic Amoxicillin is one of the cheapest antibiotics available—often $4–$10 at many pharmacies.

How to Talk to Your Doctor About Alternatives

If you can't find Augmentin, here's what to do:

1. Call your prescriber's office and explain the situation. They deal with shortage-related substitutions regularly.
2. Ask specifically: "Given my diagnosis, what would be the best alternative antibiotic?"
3. Mention any allergies or past reactions to antibiotics
4. Ask about the new prescription's availability—you don't want to switch to something that's also out of stock

If you need a quick consultation, telehealth can be a fast option. Learn more about finding a doctor who can prescribe Augmentin or an alternative.

Final Thoughts

Not being able to fill your Augmentin prescription is stressful, especially when you're feeling sick. But you're not stuck. Effective alternatives exist, and your doctor can help you find the right one for your specific infection.

Before switching, try Medfinder to see if Augmentin is available at another pharmacy near you. And if you do need to switch, rest assured that antibiotics like Cefdinir, Azithromycin, and others have been treating these infections successfully for decades.

For more information about Augmentin, check out our guides on Augmentin side effects and Augmentin drug interactions.