Tinnitus or acamprosate are useful. While there is tentative evidence for benzodiazepines, it is insufficient to support usage. Anticonvulsants have not been found to be useful. Steroid injections into the middle ear also do not seem to be effective. Botulinum toxin injection has been tried with some success in some of the rare cases of objective tinnitus from a palatal tremor. Caroverine is used in a few countries to treat tinnitus. The evidence for its usefulness is very weak. The use of sound therapy by either hearing aids or tinnitus maskers helps the brain ignore the specific tinnitus frequency. Although these
Tinnitus outcome measures. If the examination reveals a bruit (sound due to turbulent blood flow), imaging studies such as transcranial doppler (TCD) or magnetic resonance angiography (MRA) should be performed. Other potential sources of the sounds normally associated with tinnitus should be ruled out. For instance, two recognized sources of high-pitched sounds might be electromagnetic fields common in modern wiring and various sound signal transmissions. A common and often misdiagnosed condition that mimics tinnitus is radio frequency (RF) hearing, in which subjects have been tested and found to hear high-pitched transmission frequencies that sound similar to tinnitus. Prolonged exposure to loud