Cozaar (Losartan) Side Effects

Losartan, also called Cozaar, is used to treat hypertension, commonly known as high blood pressure. It is offered in 25, 50 and 100-milligram tablets; doses will be made up of these combinations.

Losartan has a few common side effects, including diarrhea, muscle craps, dizziness, insomnia and nasal congestion. There are other side effects that may affect some people. Dehydration is common in conjunction with other side effects, though not typically seen by itself.

Those taking Non-steroidal anti-inflammatory drugs (NSAIDS), potassium-sparring diuretics or cytochrome inhibitors should talk with their doctor. Be sure to specifically mention you are taking a medication that may interact negatively with Cozaar. In addition, those breastfeeding should not take Cozaar as there has not been research done on if it is transferred to breast milk or not. Those pregnant or planning to become pregnant should talk with their doctors prior to taking or continuing this medication.

Serious side effects include feeling as if you are going to pass out, shortness of breath or rapid heartbeat. Chest pain, irregular heartbeat and pain when urinating are considered dangerous and you should notify your doctor as soon as you notice any of these symptoms.

There are rare cases where Losartan causes the break down of skeletal muscle tissue and leads to kidney failure. If you experience muscle pain, tenderness or weakness call your doctor. If you experience those symptoms with fever, nausea, vomiting and/or dark colored urine, go to the hospital immediately.

Allergic reactions do occur with Losartan and Cozaar as with all medications. Signs of an allergic reaction include hives, difficulty breathing, and swelling of the face, lips, tongue or throat. Allergic reactions should be brought to a doctors’ attention immediately, severe reactions should be treated by a medical professional or via Epi-pen if you have one from previous allergies.

As with most medications, drinking alcohol, even in moderate amounts, can exacerbate symptoms, or bring on new, more serious ones. If you experience any side effects after drinking, be sure your doctor knows you were consuming alcohol prior to treatment. Some treatments will make issues worse when combined with alcohol.

As with all medications, should you feel different when taking Losartan or Cozaar, notify your doctor immediately, especially in the first couple of weeks of dosing, or after changing your dosing regime.