Drug Interaction Report

Talk to your doctor before using sparsentan together with bromfenac. Combining these medications may reduce the effects of sparsentan in lowering blood pressure. In addition, these medications may affect your kidney function, especially when they are used together frequently or chronically. You are more likely to develop impaired kidney function during treatment with these medications if you are also using a diuretic ("water pill") or if you are elderly or have preexisting kidney disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if you experience signs and symptoms that may suggest kidney damage such as nausea, vomiting, loss of appetite, increased or decreased urination, sudden weight gain or weight loss, fluid retention, swelling, shortness of breath, muscle cramps, tiredness, weakness, dizziness, confusion, and irregular heart rhythm. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

If you are taking sparsentan you should avoid potassium-containing salt substitutes or over-the-counter potassium supplements without first talking to your doctor. This can cause high levels of potassium in your blood. High levels of potassium can cause weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs. Call your doctor at once if you have any of these symptoms.

Consumption of grapefruit, grapefruit juice, and supplements that contain grapefruit should be avoided during treatment with sparsentan as they may increase the blood levels of sparsentan. This may increase the risk of side effects such as hepatotoxicity, acute kidney injury, hyperkalemia, edema, and hypotension.

Swallow sparsentan whole with water before your morning or evening meal. Take your dose with the same meal each day. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Food significantly decreases the levels of bromfenac. Avoid eating a high-fat meal. Take bromfenac on an empty stomach at least 30 minutes before or 2 hours after a meal. This will make it easier for your body to absorb the medication.