I think you might want to discuss these kinds of medications with a psychiatrist who will be more familiar with these drugs and more comfortable prescribing them. Also, you should probably consult a neurologist. They often have interesting insights into tinnitus. Certainly, they are the first specialists to see (besides ENTs) to rule out known causes (treatable and otherwise).
The other medications I was alluding to are not necessarily for sleep. For example, Gabapentin (Neurontin) is often prescribed off-label to treat tinnitus. The jury is out as to whether this one works better than a placebo (it didn't for me in the low doses I took). But it is worth a shot if a doctor will work with you on this. (Gabapentin is pretty good for sleep, too.)
-Golly
Bacus,
I agree with Golly that neurologists and psychiatrists understand the brain better than ENT's, including neurootologists who specialize in the ear.
About the antiepileptic drugs like gabapentin, they do help some people. This is because tinnitus and epilepsy share a down regulation of GABA receptors. GABA is an inhibitory neurotransmitter. It works in conjunction with glutamate, an excitatory neurotransmitter. Normally, these neurotransmitters are in balance. In neurological disorders like tinnitus, this balance tips to favor glutamate. This results in an overactivity of neurons--known as glutamate excitotoxicity. Drugs like gabapentin help to restore this balance. (Of course, this is a simplification. But I believe the main points are correct.)
Regarding gabapentin, the clinical studies are not conclusive, but this is because of research issues, according to a 2011 review published in the
American Journal of Audiology. (
http://aja.asha.org/cgi/content/short/20/2/151) Talk to your physician about trying gabapentin or another antiepileptic drug, especially carbamazepine. And there are other drugs. Flexeril, a muscle relaxant, has recently been mentioned on TT as well as namenda. (Here's a link to the latter:
https://www.ncbi.nlm.nih.gov/pubmed/23015804)
Remember that tinnitus is a symptom, not a disease, so something that works for one person may not work for another. It's important to be open minded and work closely with a doctor, trying several approaches. For many on this board, moreover, vitamins and other supplements have also helped, especially magnesium. Magnesium has several functions that makes it good against tinnitus, and its positive effects were published in 2011 in a phase II clinical trial. (
https://www.ncbi.nlm.nih.gov/pubmed/22249877)
Here's an article in gabapentin and its uses:
https://en.wikipedia.org/wiki/Gabapentin
Finally, you may also find this 2009 review article of tinnitus pharmacology interesting:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3136369/
Good luck and be strong!