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Fluoride Side Effects

Not all side effects for fluoride may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Applies to fluoride: oral liquid, oral lozenge, oral solution, oral tablet, oral tablet chewable

Get emergency medical help if you have any of these signs of an allergic reaction while taking fluoride: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor if you have any of the following side effects:

  • discolored teeth;

  • weakened tooth enamel; or

  • any changes in the appearance of your teeth.

Less serious side effects of fluoride may include:

  • stomach upset;

  • headache; or

  • weakness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

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