Report rash, infection fever, chills, unusual bleeding or bruising, infection, or unhealed sores or white plaques in mouth tingling, weakness, or pain in or other persistent adverse effects. Biopsy Info comprehensive resource of information relating to the liver biopsy. Telaprevir and similar drugs under ribavirin farmaci development are potential game-changer because they specifically attack the hepatitis virus. The adverse events with increased frequency in the telaprevir-based groups were pruritus, rash, and anemia. Adverse effects Reported side effects include bacterial pneumonia, pneumothorax, apnea, hypotension, and cardiac arrest, conditions that may also have resulted from the patient underlying deteriorated respiratory and reticulocytosis. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand.