Sensodyne Toothpaste

Drug Interaction Warnings Brush Twice a Day to Relieve Sensitivity Sensodyne contains potassium nitrate, an ingredient clinically proven to reduce painful sensitivity. If you brush twice a day with Sensodyne, you should begin to feel relief within two weeks. Build Protection With Every Use Brushing twice a day with Sensodyne Builds a "shield of protection" against painful sensitivity. Unlike regular toothpaste's, Sensodyne is specially formulated for individuals with sensitive teeth. And, since Sensodyne has fluoride, it helps protect against cavities too. Sensodyne...the #1 dentist recommended brand.