Brimonidine

Brimonidine has been studied in 4 papers since 2016: 1 trial in people, 2 in animals, 1 review; 2 in the past year. The newest paper, Apr 1, 2026: “Brimonidine Therapy for Protection From Noise-Induced Hearing Loss”.

4 papers study it1 more mentions it4 findingsUpdated Apr 1, 2026

At a glance

The findings reach mice, none yet in people. 1 lab in 1 country; 6 trials, none about aging, 3 with no results posted.

None of its findings points the other way.

Studies of brimonidine measured 4 outcomes, among them auditory function, Synapse and glutamate.

Auditory function

upin mice1

1 study

Brimonidine improves auditory function in mice.
“their auditory function in old age remained significantly worse than those that received brimonidine-mediated cochlear protection in youth.”
Animals62 weeks
Brimonidine Therapy for Protection From Noise-Induced Hearing Loss
Aging cellApr 1, 2026

Synapse

downin mice1

1 study

Brimonidine protects against synapse in mice.
“thereby decreasing glutamate excitotoxicity and protecting synapses and spiral ganglion neurons long term.”
Animals62 weeks
Brimonidine Therapy for Protection From Noise-Induced Hearing Loss
Aging cellApr 1, 2026

Glutamate

downin mice1

1 study

Brimonidine decreases glutamate in mice.
“Brimonidine inhibited the noise-induced increase in inner ear glutamate concentration and downregulated inflammatory factors and immunoglobulins.”
Animals62 weeks
Brimonidine Therapy for Protection From Noise-Induced Hearing Loss
Aging cellApr 1, 2026