 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] doctor. Doing so will not do more to prevent cavities but may lead to side effects instead. Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time each day. Do not treat this medication like a normal mouthwash: do not use it more often than prescribed, or just to freshen your breath.The side effects of Sodium Fluoride Dental: Tell your dentist/doctor right away if you notice any changes in the color or appearance of your teeth. These effects may be a result of too much fluoride. If your doctor or dentist has directed you to use this medication, remember that your doctor or dentist 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 or pharmacist. In the US - In the US </s>