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There are many medications available to treat all sorts of ailments. However, these medications can have unpleasant side effects, especially in the mouth. Here are a few of the effects medication use can have on your dental and oral health.


A reduced saliva flow may not seem that bad at first, but when you learn how important saliva is for you oral health, you realize just how harmful xerostomia (dry mouth) can be. Saliva brings in substances which rebuild the tooth enamel and fight disease. Saliva also washes away food debris and neutralizes the acids which cause tooth decay. Medications which dry out your mouth include:

  • Antidepressants
  • Muscle relaxants
  • Parkinson’s disease medication
  • Antihistamines
  • Painkillers
  • High blood pressure medication
  • Decongestants

To reverse dry mouth, drink more water, put a humidifier in your home, chew sugar-free gum, and ask your dentist about using artificial saliva.


If white lesions develop inside your mouth, you may have developed oral thrush. Thrush is a type of fungal infection which can be caused by medications like:

  • Antibiotics
  • Steroids
  • Respiratory inhalants
  • Chemotherapy

Your dentist may recommend an antifungal medication to get rid of the white lesions in your mouth.

Abnormal Bleeding

Those who have heart problems may take blood thinning medication to prevent the development of clots in their arteries. This can be beneficial for your health, unless you require oral surgery. You may experience abnormal bleeding during an oral surgery if you take medications like:

  • Anticoagulants
  • Aspirin

Tell your dentist if you take these medications. They will take extra care during the surgery and create an appropriate treatment plan.