Of course, the trick is to administer the drug before nerve death has set in after which it would be too late. In the study, only patients with onset of ringing within 3 months were eligible to participate.
Patient also need to realize that the drug is administered by injection through the eardrum and into the middle ear space. This injection technique is commonly used in the treatment of sudden nerve hearing loss where steroids are injected. Watch video of this injection method below.
Unfortunately, AM-101 is not available except under research protocols currently and is undergoing FDA clinical trials. The preliminary results are very promising however.
Efficacy and Safety of AM-101 in the Treatment of Acute Inner Ear Tinnitus—A Double-Blind, Randomized, Placebo-Controlled Phase II Study. Otology & Neurotology: April 2014 - Volume 35 - Issue 4 - p 589-597