ZORTRESS may cause serious side effects, including: ? See “What is the most important information I should know about ZORTRESS?” ? swelling under your skin especially around your mouth, eyes and in your throat (angioedema). Your chance of having swelling under your skin is higher if you take ZORTRESS along with certain other medicines. Tell your doctor right away or go to the nearest emergency room if you have any of these symptoms of angioedema: ? sudden swelling of your face, mouth, throat, tongue or hands ? hives or welts ? itchy or painful swollen skin ? trouble breathing ? delayed wound healing. ZORTRESS can cause your incision to heal slowly or not heal well. Call your doctor right away if you have any of the following symptoms: ? your incision is red, warm or painful ? blood, fluid, or pus in your incision ? your incision opens up ? swelling of your incision ? lung or breathing problems. Tell your doctor right away if you have new or worsening cough, shortness of breath, difficulty breathing or wheezing. In some patients lung or breathing problems have been severe, and can even lead to death. Your doctor may need to stop ZORTRESS or lower your dose. ? increased cholesterol and triglycerides (fat in your blood). If your cholesterol and triglyceride levels are high your doctor may want to lower them with diet, exercise and certain medicines. ? protein in your urine (proteinuria). ? change in kidney function. ZORTRESS may cause kidney problems when taken along with a standard dose of cyclosporine medicine instead of a lower dose. Your doctor should do blood and urine tests to monitor your cholesterol, triglycerides and kidney function. ? viral infections. Certain viruses can live in your body and cause active infections when your immune system is weak. Viral infections that can happen with ZORTRESS include BK virus-associated nephropathy. BK virus can affect how your kidney works and cause your transplanted kidney to fail. ? blood clotting problems. ? diabetes. Tell your doctor if you have frequent urination, increased thirst or hunger. ? infertility, male. ZORTRESS can affect fertility in males and may affect your ability to father a child. Talk with your doctor if this is a concern for you. ? infertility, female. ZORTRESS can affect fertility in females and may affect your ability to become pregnant. Talk to your doctor if this is a concern for you. The most common side effects of ZORTRESS in people who have had a kidney or liver transplant include: These common side effects have been reported in both kidney and liver transplant patients: ? nausea ? swelling of the lower legs, ankles and feet ? high blood pressure The most common side effects of ZORTRESS in people who have had a kidney transplant include: ? constipation ? low red blood cell count (anemia) ? urinary tract infection ? increased fat in the blood (cholesterol and triglycerides) The most common side effects of ZORTRESS in people who have had a liver transplant include: ? diarrhea ? headache ? fever ? abdominal pain ? low white blood cells These are not all of the possible side effects of ZORTRESS.