Liver enzyme abnormalities, myalgia, muscle spasm, back pain, diarrhoea, constipation, pain in extremities, arthralgia, headache, dizziness, influenza, nasopharyngitis, abdominal discomfort, abdominal pain, dyspepsia, nausea, asthenia, malaise, fatigue, hepatitis, jaundice, hypoaesthesia, insomnia, depression, interstitial lung disease, erectile dysfunction, cognitive impairment (e.g. memory loss and impairment, confusion, forgetfulness, amnesia). Potentially Fatal: Myopathy and rhabdomyolysis w/ acute renal failure secondary to myoglobinuria; hepatic failure.