Hair Loss and Interferon

I have a question with regards to hair loss and interferon. I finished a six month regime of the drug and have noticed that the last few months my hair has been thinning considerably. This concerns me because fifteen years ago i underwent a hair transplant and have been blessed with a full head of hair, but now that it is thinning because of the drug I am worried about whether it will come back or not. Nobody can really give me any insight on this issue and I would appreciate some guidance here. Thanks in advance

Interferon is known to thin hair or cause hair loss, and that would include transplanted hair as well as other hair on the scalp. See https://janis7hepc.com/hair_loss.htm for more.