SIDE EFFECTS: Mouth/gum irritation may rarely occur. If this effect persists or worsens, contact your doctor/dentist or pharmacist promptly. Tell your doctor/dentist right away if your teeth become stained or pitted. This is often a result of too much fluoride. Remember that your doctor/dentist has prescribed this medicine 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, get medical help right away if you notice any symptoms of a serious allergic reaction, including: 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/dentist 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 this medication, tell your doctor/dentist 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/dentist or pharmacist your medical history, especially of: mouth problems (e.g., sores, mucositis). Children may be more sensitive to the side effects of this drug, especially if this medication is swallowed. Watch children closely when they are using this medication to make sure that they do not swallow this medication. Tell your doctor if you are pregnant before using this medication. It is unknown if this drug passes into breast milk. Consult your healthcare professional before breast-feeding.

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

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. Symptoms of overdose may include: burning in the mouth, sore tongue, nausea, vomiting, diarrhea, increased saliva, stomach pain/cramping, muscle weakness, shaking, seizures.