Four different dosage regimens of interferon (IFN) alfa-2b (3 million
units (MU) three times weekly for three months, 3 MU three times weekl
y for six months, 6 MU two times weekly for six months, and 6 MU three
times weekly for six months) were compared in patients with chronic h
epatitis C. There was no significant difference measured by percentage
of responders to treatment between the four groups, but the degree of
response was inversely correlated with the severity of liver damage.
Viraemia was undetectable in most (75%) of responders treated with int
erferon and also in 20% of those who did not respond to treatment.