Study Of Eltrombopag in Healthy Subjects and Volunteers With Mild, Moderate or Severe Hepatic Impairment

Inclusion criteria: * Healthy or have liver impairment * Females(the following requirement applies only if able to have children): agree to doctor approved birth control methods, or partner has had a vasectomy. * Body mass index (BMI-within acceptable range) * Negative drug, alcohol, and HIV tests Exclusion criteria: * Taking a medication or therapy not approved by the study doctor * Rapidly changing liver function * Kidneys not working well * Drug or alcohol abuse within past 6 months * Used an investigational drug in the past 30 days * Females that are pregnant or nursing * Have active hepatitis B or C * History of blood disorders * History of various heart conditions (as noted by study doctor) * Blood clotting problems or blood abnormalities