... depression, suicidal and homicidal thoughts, dizziness and falling, severe headaches, and severe confusion. My son is experiencing all of these. He took Harvoni for 8 weeks ending May 24th 2016 and began having these side effects in August. He has never had any psychiatric problems before. He has been to the VA emergency room twice and the second time they referred him to a neurologist who stated that this was from the Harvoni.