It is sometimes seen that depression may be associated with HCV
We also often use anti-depressants while treating with interferon based treatments.
This is worth watching. It is pretty chilling. It relates to AD drug use in the military, but it probably has broader implications across our heavily medicated society.
https://www.youtube.com/watch?v=SBJfZtB_3cc&feature=youtu.be
I would also recommend reading the comments.
~W