Chlorhexidine (Peridex) is an antiseptic mouthwash that's used to treat gingivitis (gum inflammation) in adults. Your dentist might prescribed it for you after a dental checkup if they think you need it. Typically, you rinse with chlorhexidine (Peridex) by mouth twice daily after you've brushed your teeth. Some common side effects of chlorhexidine (Peridex) include staining of the teeth, changes in taste, and hardening of dental tartar.
Gingivitis
Chlorhexidine (Peridex) is an antiseptic mouthwash that kills certain germs (e.g., bacteria, fungi, viruses) in your mouth. It destroys their protective coverings so these germs can't survive. As a result, chlorhexidine (Peridex) can be used to prevent dental plaque, which helps to treat gingivitis and relieve symptoms of gum bleeding and swelling.
Source:Â DailyMed
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
Tooth, gum, or mouth pain, tenderness, aching, throbbing, soreness, discomfort, or sensitivity (mild to moderate)
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Available as a lower-cost generic medication
No significant interactions with other medications or supplements
Might work well for people who didn’t see benefits with other mouthwashes for gingivitis
Helps to prevent dental plaque
Available by prescription only
Can stain your teeth or change your taste buds
Might not be safe or effective for children
Short-term use only
You will typically receive a prescription for chlorhexidine (Peridex) at the dental office after a check-up. Make sure to follow up with your dentist every 6 months while you're using chlorhexidine (Peridex). This can help your dentist make sure this medication is working for you and not causing side effects.
Keep in mind that chlorhexidine (Peridex) alone is not enough to prevent gingivitis. It's important to regularly brush your teeth, clean between your teeth with a floss, and visit your dentist for a check up and professional cleaning. If you continue to experience gum bleeding and swelling, or you have loose teeth, see your dentist right away. These can be symptoms of severe gum disease (periodontitis).
It's recommended that you wait to eat food or drink liquid after using chlorhexidine (Peridex). If you don't wait, you might accidentally swallow some of the medication, which can cause stomach irritation or nausea.
Brush your teeth before rinsing your mouth with chlorhexidine (Peridex). Don't rinse your mouth with water or other mouthwash and don't brush your teeth after. Doing so can cause chlorhexidine (Peridex) to not work as well.
Don't use leftover chlorhexidine (Peridex) without speaking to your dentist. In some cases, if your gum disease is severe, you might need to see your dentist for further treatment since chlorhexidine (Peridex) alone might not work so well. If you have symptoms of painful chewing, loose teeth, and bleeding gums, contact your dentist right away.
Chlorhexidine (Peridex) might not be safe or effective for children. In small children, taking chlorhexidine (Peridex) by mouth can cause nausea, slurred speech, and slow movement. Don't give your child chlorhexidine (Peridex). If you think that your child might’ve accidentally swallowed chlorhexidine (Peridex), call your Poison Control Center at 1-800-222-1222 right away even if you aren't completely sure.
Store this medication up and away and out of children's reach and sight. This prevents them from accidentally swallowing medicine that was left out. Always put medication away every time you use it.
Chlorhexidine (Peridex) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Risk factors: Plaque build-up | Long-term use of chlorhexidine (Peridex)
Chlorhexidine (Peridex) can stain your teeth, dental fillings, and your tongue. The stains are harmless and usually form where there is a lot of plaque. Typically, these stains either go away by themselves or they can be removed by your dentist. Make sure to brush, floss, and see your dentist regularly for cleanings.
During treatment with chlorhexidine (Peridex), your taste buds might change temporarily. In particular, you might have a more difficult time tasting salty and bitter flavors. In addition, chlorhexidine (Peridex) itself also has a bitter aftertaste. If your taste buds haven't recovered after stopping chlorhexidine (Peridex), talk to your dentist.
Some people using chlorhexidine (Peridex) may have more plaque buildup on their teeth. This can lead to gum diseases, which can cause gum bleeding and swelling. Make sure to brush your teeth twice a day and floss once a day. You should also see your dentist at least every 6 months for teeth cleanings and checkups so the plaque can be removed. If you have a serious gum infection or severe gum disease, your dentist might need to give you further treatments in addition to chlorhexidine (Peridex).
Risk factor: History of allergy to products containing chlorhexidine
Although rare, chlorhexidine (Peridex) can cause severe and sometimes deadly allergic reactions. If you experience symptoms such as a rash, itchy skin, hives, difficulty breathing, swelling of your face or throat, stomach upset, or diarrhea while using chlorhexidine (Peridex), stop this medication and get medical attention right away.
Adults: The typical dose is 15 mL swished around the mouth for 30 seconds and then spit out 2 times a day. Do this after toothbrushing in the morning and evening.
GoodRx has partnered with PatientsLikeMe to provide reviews on the different aspects of Chlorhexidine (Peridex).
Learn more about the effectiveness of Chlorhexidine (Peridex) based on real life experiences.
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Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.
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Brookes, Z. L. S., et al. (2020). Current uses of chlorhexidine for management of oral disease: A narrative review. Journal of Dentistry.
Centers for Disease Control and Prevention. (2013). Periodontal disease.
Centers for Disease Control and Prevention. (2023). Put your medicines up and away and out of sight.
Chartwell RX, LLC. (2023). Chlorhexidine gluconate 0.12% oral rinse- chlorhexidine gluconate 0.12% oral rinse solution [package insert]. DailyMed.
Frank, M. E., et al. (2001). Effects of chlorhexidine on human taste perception. Physiology & Behavior.
Henry Schein, Inc. (2023). Acclean chlorhexidine gluconate 0.12% oral rinse- chlorhexidine gluconate solution [package insert]. DailyMed.
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Marinone, M. G., et al. (2000). Chlorhexidine and taste. Influence of mouthwashes concentration and of rinsing time. Minerva Stomatologica.
MedlinePlus. (2022). Plaque and tartar on teeth.
MouthHealthy. (n.d.) Plaque [video]. American Dental Association.
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Poppolo Deus, F., et al. (2022). Chlorhexidine in dentistry: Pharmacology, uses, and adverse effects. International Dental Journal.
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