Alternatives to Onexton: What to Know

Onexton is a highly effective acne treatment, but it's not always easy to get. Whether your pharmacy doesn't have it in stock, your insurance won't cover it, or the cost is simply too high, you're not alone in looking for alternatives.

The good news? There are several other prescription medications that work in a similar way and may be just as effective for your acne. In this article, we'll explain what Onexton is, how it works, and walk you through the best alternatives available in 2026.

What Is Onexton?

Onexton is a prescription topical gel that combines two active ingredients to fight acne:

• Clindamycin Phosphate 1.2% — A lincosamide antibiotic that stops acne-causing bacteria (like Cutibacterium acnes) from multiplying
• Benzoyl Peroxide 3.75% — An antiseptic that kills bacteria on the skin surface, helps unclog pores, and reduces inflammation

It's FDA-approved for the topical treatment of acne vulgaris in patients 12 years and older. You apply it once daily to the face after cleansing. For a full overview, see our guide on what Onexton is, its uses, and dosage.

How Does Onexton Work?

Onexton works by attacking acne from two angles simultaneously. The clindamycin component blocks bacterial protein synthesis, preventing acne-causing bacteria from growing. Meanwhile, benzoyl peroxide acts as an oxidizing agent that directly kills bacteria and helps strip away dead skin cells that clog pores.

Using these two ingredients together also helps prevent antibiotic resistance — a growing concern when antibiotics are used alone for acne. The benzoyl peroxide essentially ensures that bacteria can't develop resistance to the clindamycin.

For more details on the science, read our article on how Onexton works.

Why You Might Need an Alternative

There are several common reasons patients look for Onexton alternatives:

• Cost — Onexton costs $400 to $990 without insurance, and there's no generic
• Insurance barriers — Many plans require prior authorization or step therapy before covering Onexton
• Availability — Not all pharmacies stock it due to refrigeration requirements and low demand
• Side effects — Some patients may not tolerate the specific formulation

The Best Alternatives to Onexton in 2026

1. Generic Clindamycin/Benzoyl Peroxide (Acanya Generic)

The closest alternative to Onexton is generic Clindamycin Phosphate 1.2% / Benzoyl Peroxide 2.5%, which is the generic version of Acanya. It contains the same antibiotic at the same concentration, with a slightly lower amount of benzoyl peroxide (2.5% vs. 3.75%).

• Pros: Much more affordable ($30 to $100), widely available, generic
• Cons: Lower benzoyl peroxide concentration, also requires refrigeration
• Cost: Approximately $30 to $80 with a discount card

This is typically the first alternative insurance companies will suggest through step therapy, and it works well for many patients.

2. BenzaClin (Clindamycin 1% / Benzoyl Peroxide 5%)

BenzaClin is an older combination product that pairs clindamycin with a higher concentration of benzoyl peroxide. Generic versions are widely available.

• Pros: Generic available, established track record, widely stocked
• Cons: Higher benzoyl peroxide (5%) may cause more dryness and irritation; slightly lower clindamycin (1% vs. 1.2%)
• Cost: Approximately $25 to $70 for generic

3. Duac (Clindamycin 1.2% / Benzoyl Peroxide 5%)

Duac offers the same clindamycin concentration as Onexton but with a higher benzoyl peroxide level. Generic versions are available.

• Pros: Same clindamycin dose as Onexton, generic available, once-daily application
• Cons: Higher benzoyl peroxide may increase irritation for sensitive skin
• Cost: Approximately $30 to $90 for generic

4. Epiduo Forte (Adapalene 0.3% / Benzoyl Peroxide 2.5%)

If clindamycin-based products aren't working for you or your doctor wants to try a different approach, Epiduo Forte combines a retinoid (Adapalene) with benzoyl peroxide. This targets acne differently — by promoting skin cell turnover and unclogging pores in addition to killing bacteria.

• Pros: Different mechanism of action, doesn't contain an antibiotic (no resistance concerns with long-term use)
• Cons: Brand-name product (expensive without insurance), can cause significant dryness and peeling initially
• Cost: $300 to $500 for brand; generic Adapalene/Benzoyl Peroxide may be more affordable

How to Talk to Your Doctor About Alternatives

If you need to switch from Onexton, here are some tips for the conversation with your provider:

• Explain whether the issue is cost, availability, or side effects — this helps your doctor choose the right alternative
• Ask about generic options first — they're typically the most affordable
• Mention if you have sensitive skin — your doctor may recommend a lower benzoyl peroxide concentration
• Ask about samples — many dermatology offices have sample products you can try before committing to a full prescription

If you need help finding a prescriber, check out our guide on how to find a doctor who can prescribe Onexton near you.

Final Thoughts

Not being able to fill your Onexton prescription is frustrating, but it doesn't mean you're stuck without treatment. Several effective alternatives contain the same or similar active ingredients, and many are available as affordable generics.

Before switching, always talk to your dermatologist or prescriber about which option is best for your skin type and acne severity. And if you'd like to keep trying to find Onexton, tools like Medfinder can help you locate pharmacies that have it in stock. Read our guide on how to find Onexton in stock near you for more tips.