A fascinating study came out August 2019 that treated patients with vocal tremor with an over-the-counter supplement called octanoic acid , more commonly known as caprylic acid . The theory behind using octanoic acid (OA) comes from the observation that OA works similarly to alcohol (but without the side effects); alcohol often helps reduce limb and hand tremor and is thought to act centrally within the olivocerebellar region of the brain. Given that OA is thought to work the same way a…