If you also take cholestyramine or colestipol, take your Hyzaar dose 4 hours before or 4 to 6 hours after you take the other medicine.
Tell your doctor about all your other medicines, especially:
a diuretic or "water pill";
other blood pressure medications;
lithium; 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 interact with hydrochlorothiazide and losartan, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
 Hyzaar drug interactions (more detail)
