INCIVEK and other medicines can affect each other and can also cause side effects that can be serious or life threatening. There are certain medicines patients cannot take with INCIVEK combination treatment. Patients should tell their healthcare providers about all the medicines they take, including prescription and non-prescription medicines, vitamins and herbal supplements.INCIVEK can cause serious side effects including skin reactions, rash and anemia that can be severe. The most common side effects of INCIVEK include itching, nausea, diarrhea, vomiting, anal or rectal problems, taste changes and tiredness. There are other possible side effects of INCIVEK, and side effects associated with peginterferon alfa and ribavirin also apply to INCIVEK combination treatment. Patients should tell their healthcare providers about any side effect that bothers them or doesn't go away. Please see full Prescribing Information for INCIVEK including the Medication Guide, available at www.INCIVEK.com. About Hepatitis C Hepatitis C is a serious liver disease caused by the hepatitis C virus, which is spread through direct contact with the blood of infected people and ultimately affects the liver. 1 Chronic hepatitis C can lead to serious and life-threatening liver problems, including liver damage, cirrhosis, liver failure or liver cancer. 1 Though many people with hepatitis C may not experience symptoms, others may have symptoms such as fatigue, fever, jaundice and abdominal pain. 1 Unlike HIV and hepatitis B virus, chronic hepatitis C can be cured. 2 If treatment is not successful and a person does not achieve a viral cure, they remain at an increased risk for progressive liver disease. 3,4 More than 170 million people worldwide are chronically infected with hepatitis C. 5 In the United States, up to 5 million people have chronic hepatitis C and 75 percent of them are unaware of their infection. 6,7 Hepatitis C is four times more prevalent in the United States compared to HIV. 7 The majority of people with hepatitis C in the United States were born between 1945 and 1965, accounting for 82 percent of people with the disease. 8 Hepatitis C is the leading cause of liver transplantations in the United States and is reported to contribute to 15,000 deaths annually. 9,10 By 2029, total annual medical costs in the United States for people with hepatitis C are expected to more than double, from $30 billion in 2009 to approximately $85 billion. 11 About Vertex Vertex creates new possibilities in medicine. Our team discovers, develops and commercializes innovative therapies so people with serious diseases can lead better lives.