There are six genotypes of the hepatitis C virus. The combination of medications used to treat the infection and the time to complete treatment vary for each genotype. Recommended treatment times are as follows:
Genotype 1: 12 to 24 weeks, or less commonly, 48 weeks
Genotype 2: 12 weeks
Genotype 3: 12 to 24 weeks
Genotype 4: 12 to 24 weeks, or less commonly, 48 weeks
Genotypes 5 and 6: 12 weeks, or less commonly, 48 weeks
In addition, researchers are testing drug regimens that can shorten the treatment time to as little as 8 weeks in some people.