SIDE EFFECTS: Tooth/tongue staining, increased tartar, mouth/throat irritation, dry mouth, and change in taste of food/drinks may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. To decrease staining of teeth and mouth surfaces, brush with toothpaste 3 times daily, brushing more on the stained areas. Use of a "tartar control" toothpaste and electric toothbrush may be more effective. See your dentist at least every 6 months for tooth cleaning/tartar removal. Staining from this medication that may occur on dental work (such as crowns or veneers) usually can only be removed by a dentist/hygienist. To decrease the effect on how food tastes, eat first, followed by tooth brushing and then chlorhexidine rinse. Remember that your doctor/dentist has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: mouth or skin rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: Before using chlorhexidine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: dental crowns, veneers, or fillings (especially if on the front teeth and if made of porcelain). Tell your doctor if you are pregnant before using this medication. It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring. To help your doctor or pharmacist give you the best care, be sure to tell your doctor or pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval. Chlorhexidine rinse is not likely to cause drug interactions, even if accidentally swallowed. However, be careful not to swallow this medication because doing so may increase side effects. Keep a list of all the products you use. Share the list with your doctor and pharmacist to reduce your risk for serious medication problems.

OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.