I have had chronic tinnitus since 2015. It was originally caused in 2008 by two MRI scans I had while I was in the hospital. I now know this to be true because I joined a tinnitus forum in 2018, and a very high percentage of patients there have also come to the same conclusion. I wish I had known this before having four more MRI scans.
I started using Cinnarizine two weeks ago, and I think it helps, especially at night. My tinnitus has caused me a great deal of grief in the early hours, but Cinnarizine seems to calm it. I have been prescribed different antidepressants by my doctor, but they only made the tinnitus worse, so I threw them away.
I take 25 mg in the morning and again before bed. It does not affect my brain or make me sleepy, but it does help me feel calmer. As a bonus, it also seems to help my psoriasis and psoriatic arthritis, since it is an anti-inflammatory substance.
Believe me, I have been on the edge of the abyss with tinnitus. It is with me 24/7, and I have absolutely no hearing loss. Touch wood, I hope you get some relief from this nightmare.