Improvement of Self-Perceived Tinnitus and Speech Discrimination in Noise by Lyophilized Powder of Enzymolyzed Honeybee (Apis melifera) Larvae in Older Adults with Age-Related Hearing Loss: A Double-Blind Placebo-Controlled, Randomized Study

Background: Tinnitus troubles many older adults accompanying an increased threshold of high-frequency hearing, and most older adults struggle to understand conversations in noise. Objectives: An exciting power of honeybee products has been reported as alternative medicine. We also previously reported that lyophilized powder of enzymolyzed honeybee (Apis melifera) larvae may have a therapeutic effect on hearing loss or tinnitus.