Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.
Tell your doctor about all your current medicines. Many drugs can interact with dexamethasone, especially:
an antibiotic or antifungal medicine;
birth control pills or hormone replacement therapy;
insulin or diabetes medications you take by mouth;
medicine to treat dementia or Parkinson's disease;
a blood thinner - warfarin, Coumadin, Jantoven; or
NSAIDs (non-steroidal anti-inflammatory drugs) - aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others.
This list is not complete and many other drugs may affect dexamethasone. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
 Dexamethasone drug interactions (more detail)
