Does melatonin have therapeutic use in tinnitus?
Study Goal
The researchers aimed to evaluate melatonin's potential as a treatment for tinnitus, including its safety, efficacy, and possible mechanisms of action.
Results Summary
Melatonin may alleviate subjective tinnitus symptoms, possibly due to antioxidative properties, sleep enhancement, or other unknown mechanisms. It also shows potential protective effects against ototoxic drugs and neurogenerative benefits.
Population
Older adults with significant tinnitus (specific age or sample size not detailed).
Effective Dosage
1 to 3 mg daily (modest doses mentioned).
Duration
Not specified.
Interactions
None mentioned.
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
melatonin | decrease | subjective symptoms of tinnitus | - | - | may alleviate | #1 |
melatonin | decrease | ototoxic drugs such as amikacin, gentamicin, or cancer therapeutic agents that are dose dependent | - | - | may have properties protective against | #2 |
melatonin | increase | antioxidative properties | in vitro | - | has demonstrated | #3 |
melatonin | decrease | tinnitus | - | - | contribute to the alleviation of | #4 |
supplemental melatonin | increase | minimal antioxidative properties, sleep enhancement, or other potential methods of action | - | - | benefits from taking | #5 |
melatonin | decrease | modest daily doses such as 1 to 3 mg | older adults | - | offers minimal risk of toxicity with | #6 |
melatonin | increase | neurogenerative properties | - | - | may have beneficial | #7 |
Melatonin, a hormone produced by the pineal gland, may be a promising treatment option for tinnitus. The primary functions of this hormone are believed to be the initiation and maintenance of sleep because its secretions coincide with circadian rhythms. Some investigators have noted that melatonin may alleviate subjective symptoms of tinnitus. Moreover, melatonin may have properties protective against ototoxic drugs such as amikacin, gentamicin, or cancer therapeutic agents that are dose dependent. In vitro, melatonin has demonstrated antioxidative properties and it has been postulated that these antioxidative properties contribute to the alleviation of tinnitus. Melatonin levels used to obtain these findings in vitro, however, are at supraphysiologic levels; therefore, it is more likely that the benefits from taking supplemental melatonin occur from minimal antioxidative properties, sleep enhancement, or other potential methods of action that are not yet understood. Melatonin offers minimal risk of toxicity with modest daily doses such as 1 to 3 mg, as well as a low cost and favorable adverse effect profile for older adults. In addition to potential benefits in the treatment of tinnitus, melatonin also may have beneficial neurogenerative properties. We recommend that melatonin be considered for use in patients with significant tinnitus.