This is a community of hepatitis c patients coming here for help and mutual support. No one here is a medical professional and so no one here can or should answer this question.
This question should be addressed by a doctor.
I would like to add if the cause of low hemoglobin is advanced liver disease you should avoid iron supplements.
Other ways to raise hemoglobin exist like injections of Epotin A as an example but a physician would know best how to proceed based on the patients medical condition and cause of their low hemoglobin levels.