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 other medicines, especially:
a stomach acid reducer such as omeprazole, Nexium, or Prilosec;
an antidepressant such as citalopram, fluoxetine, sertraline, Cymbalta, Effexor, Lexapro, Pristiq, or Prozac;
rifampin;
a blood thinner--warfarin, Coumadin, Jantoven; or
NSAIDs (nonsteroidal anti-inflammatory drugs)--aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others.
This list is not complete. Other drugs may affect clopidogrel, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
 Clopidogrel drug interactions (more detail)
