Cepacol Antibacterial Mouthwash: The Basics

Cepacol Antibacterial Mouthwash is an over-the-counter antiseptic oral rinse containing Cetylpyridinium Chloride (CPC) 0.05% that kills bacteria that cause plaque, gingivitis, and bad breath.

If you're shopping for a mouthwash that does more than freshen your breath, Cepacol is one of the most established names in oral care. It's been around for decades, it's the #1 mouthwash brand used in hospitals, and it's backed by the science of CPC — a proven antibacterial ingredient.

This guide covers everything you need to know: what it is, what it's used for, how to take it, who should avoid it, and what it costs in 2026.

What Is Cepacol Antibacterial Mouthwash?

Here are the key facts:

• Active ingredient: Cetylpyridinium Chloride (CPC) 0.05%
• Drug class: Quaternary Ammonium Antiseptic
• Brand names: Cepacol Antibacterial Multi-Protection Mouthwash, Cepacol Antibacterial
• Generic name: Cetylpyridinium Chloride Mouthwash
• Manufacturer: RB Health (US) LLC (Reckitt Benckiser), Parsippany, NJ
• Availability: Over the counter (no prescription required)
• Controlled substance: No
• Form: Oral liquid/mouthwash in a 24 FL OZ (710 mL) bottle

CPC is a well-studied antiseptic that works by disrupting bacterial cell membranes. For a plain-English explanation of how it works, see our post on how Cepacol's mechanism of action works.

What Is It Used For?

Cepacol Antibacterial Mouthwash has three primary uses, all printed right on the label:

1. Prevents and reduces plaque — Plaque is the sticky film of bacteria that builds up on teeth. Left unchecked, it hardens into tartar and leads to gum disease. CPC kills the bacteria that form plaque.
2. Reduces bleeding gums — Bleeding when you brush or floss is often the first sign of gingivitis (early gum disease). Regular use of an antibacterial rinse like Cepacol can reduce this symptom.
3. Kills germs that cause bad breath — Unlike mouthwashes that simply mask odor with minty flavor, Cepacol targets the bacteria that actually produce the sulfur compounds responsible for bad breath.

Additional Uses

Beyond the label, Cepacol is also commonly used as:

• A general oral antiseptic for daily hygiene
• A pre-procedural rinse in dental offices before cleanings or procedures
• Part of hospital oral care protocols — it's the #1 brand in hospital settings

How Is It Taken?

Using Cepacol is straightforward:

• Dose: 20 milliliters (about 2/3 of a fluid ounce) per rinse
• Frequency: Twice daily
• Method: Vigorously swish the rinse between your teeth for 30 seconds, then spit it out completely
• Do not swallow

Important Usage Notes

• Not a replacement for brushing and flossing — use it as an addition to your oral care routine
• Timing matters: For best results, use Cepacol at a different time than brushing. Some toothpastes containing sodium lauryl sulfate (SLS) can reduce CPC effectiveness if used at the same time.
• Storage: Keep at room temperature, 68-77°F (20-25°C)

Age Restrictions

• Adults and children 12+: Full use as directed
• Children 6-12: Use with adult supervision only
• Children under 6: Do not use

If more than the rinsing amount is accidentally swallowed, contact Poison Control at 1-800-222-1222.

Who Should Not Use It?

Cepacol Antibacterial Mouthwash is safe for most people, but there are some important exceptions:

• Children under 6: Not safe due to the risk of swallowing
• Known allergy to CPC or any of the inactive ingredients
• Tartrazine (FD&C Yellow #5) sensitivity: Cepacol contains this dye, which can cause allergic reactions — especially in people with aspirin sensitivity
• People avoiding alcohol: The formula contains 14% alcohol (v/v). If you're avoiding alcohol for medical, religious, or recovery reasons, consider alcohol-free alternatives like Crest Pro-Health or Colgate Total. See our alternatives guide for options.
• Pregnant or breastfeeding: Consult a healthcare provider first, especially given the alcohol content

For a detailed look at potential side effects, read our post on Cepacol side effects.

How Much Does It Cost?

Cepacol Antibacterial Mouthwash is one of the more affordable antibacterial rinses on the market:

• Brand (Cepacol): $6 to $10 for a 24 oz bottle at most retailers
• Store-brand CPC mouthwashes (Equate, Up&Up, etc.): $3 to $6 for similar sizes

Insurance and Coverage

As an OTC product, Cepacol is generally not covered by insurance. However:

• Some dental plans may reimburse OTC oral care products
• FSA and HSA accounts typically cover OTC health products like mouthwash
• No prior authorization or step therapy is required

There's no dedicated manufacturer savings program, but Reckitt Benckiser periodically offers coupons through brand promotions and retailer circulars. For more savings tips, see our guide on saving money on Cepacol.

Final Thoughts

Cepacol Antibacterial Mouthwash is a proven, affordable, and widely available OTC product that effectively fights plaque, gingivitis, and bad breath. Its active ingredient — Cetylpyridinium Chloride — has decades of clinical evidence behind it and is trusted in both home and hospital settings.

For most adults and children 12+, it's a solid addition to a daily brushing and flossing routine. Just be mindful of the alcohol content, the tartrazine dye, and the proper timing relative to brushing.

If you're having trouble finding it in stock — some sizes have been discontinued — Medfinder can help you locate it near you.

Find Cepacol Antibacterial Mouthwash near you on Medfinder →