Peridex 0.12% Chlorhexidine Mouthrinse — Prescription-Strength

Peridex is a prescription-strength antibacterial mouth rinse containing 0.12% chlorhexidine gluconate. It is prescribed to reduce the bacterial load in the mouth and support healing of inflamed or post-surgical gum tissue. Dentists commonly recommend it after deep cleaning (scaling and root planing), after oral surgery or extractions, and for managing significant gingivitis.

Chlorhexidine gluconate is one of the most effective antimicrobial agents available in oral care. It binds to the surfaces of the mouth and releases over several hours, giving a sustained antibacterial effect that ordinary over-the-counter rinses do not match. That sustained, clinical-strength action is why it is reserved for prescription use rather than sold over the counter.

How to use Peridex

Use Peridex after brushing. The standard regimen is to swish 15 mL (one capful) for 30 seconds, twice a day, then spit it out — do not swallow. Do not eat, drink, or rinse with water for at least 30 minutes afterward, as this shortens the contact time and reduces the benefit. Because some toothpaste ingredients can inactivate chlorhexidine, wait about 30 minutes after brushing before rinsing with Peridex for best results.

How long should you use it?

Peridex is intended for short-term use, typically around 14 days or as directed by your dentist. Prolonged continuous use can cause brown surface staining of the teeth and a temporary change in taste — both are reversible with a professional cleaning once the course is finished. Your dentist may recommend a repeat course after a break if needed.

Peridex vs. over-the-counter mouthwash

Over-the-counter antiseptic rinses (such as essential-oil or cetylpyridinium-based products) are designed for everyday freshening and mild gingivitis prevention. Peridex is a clinical, prescription-strength product used for active gum inflammation, post-surgical healing, and recovery after deep cleaning. It is not a daily-forever mouthwash — it is a targeted, time-limited treatment prescribed for a specific purpose.

Getting Peridex through Soothing Dental

Because chlorhexidine is prescription-only, you cannot buy Peridex over the counter. Soothing Dental makes it straightforward: complete a short online health questionnaire, and a licensed dentist reviews it — at no extra charge — before your order ships. No in-office visit is required.

Related reading from Soothing Dental: Learn more about what causes gum disease and how it's treated.

Frequently Asked Questions

Can you buy Peridex over the counter?

No. Peridex (0.12% chlorhexidine gluconate) is prescription-only in the United States, so it is not sold over the counter. Soothing Dental lets you obtain it online — a licensed dentist reviews a short questionnaire at no extra cost before your order ships.

Do you need a prescription for Peridex?

Yes. Chlorhexidine gluconate rinse requires a prescription. Through Soothing Dental, the prescription review is included free with your order — you complete a brief health questionnaire and a licensed dentist reviews it.

Is Peridex the same as chlorhexidine?

Peridex is a brand name for 0.12% chlorhexidine gluconate oral rinse. The active ingredient and concentration are the same as other 0.12% chlorhexidine gluconate rinses.

How long can I use Peridex?

Standard courses are about 14 days. Long-term continuous use can stain the teeth and affect taste, so it is used short-term. Your dentist may prescribe a second course after a break.

Does Peridex stain teeth?

It can cause brown surface staining with prolonged use. The staining is reversible with a professional cleaning. For short courses, the rapid reduction in bacteria usually outweighs the temporary staining.