Medicines and Mouth Problems

Many prescription and nonprescription medicines can cause mouth problems. A few examples are:

• Antibiotics.
• Some seizure medicines.
• Medicines used to treat cancer (chemotherapy).
• Steroid medicines.
• Medicines used after organ transplant.

Antibiotics may cause many mouth problems. If you have recently started an antibiotic and now have a mouth problem, suspect that the antibiotic is the cause. Do not stop taking the antibiotic. Call your doctor to see whether your antibiotic can be adjusted. Most problems will go away when you stop taking the antibiotic.