Losartan Potassium 50 mg Tablet

You should not use losartan if you are allergic to it.If you have diabetes, do not use losartan together with any medication that contains aliskiren (Amturnide, Tekturna, Tekamlo, Valturna). You may also need to avoid taking this medicine with aliskiren if you have kidney disease.

To make sure losartan is safe for you, tell your doctor if you have:

• kidney disease;

• liver disease;

• congestive heart failure;

• an electrolyte imbalance (such as low levels of potassium in your blood); or

• if you are dehydrated.

In rare cases, losartan can cause a condition that results in the breakdown of skeletal muscle tissue, leading to kidney failure. Call your doctor right away if you have unexplained muscle pain, tenderness, or weakness especially if you also have fever, unusual tiredness, and dark colored urine.

Call your doctor at once if you have:

• a feeling that you might pass out;

• pain or burning when you urinate;

• pale skin, feeling light-headed or short of breath, rapid heart rate, trouble concentrating;

• wheezing, chest pain;

• drowsiness, confusion, mood changes, increased thirst, loss of appetite, nausea and vomiting;

• swelling, weight gain, feeling short of breath, urinating less than usual or not at all; or

• high potassium (slow heart rate, weak pulse, muscle weakness, tingly feeling).

Common losartan side effects may include:

• cold or flu symptoms such as stuffy nose, sneezing, sore throat, fever;

• dry cough;

• muscle cramps;

• pain in your legs or back;

• stomach pain, diarrhea;

• headache, dizziness;

• tired feeling; or

• sleep problems (insomnia).

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.