Tell your doctor about all medicines you use, and those you start or stop using during your treatment with losartan, especially:
a diuretic or "water pill";
other blood pressure medications;
lithium;
celecoxib; or
aspirin or other NSAIDs (non-steroidal anti-inflammatory drugs) such as ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others.
This list is not complete. Other drugs may interact with losartan, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
 Losartan drug interactions (more detail)
