Linked from
The 14 pages that link to Ototoxicity, each with the reason it gives.
Hearing lossRelated: Some treatments cause or worsen hearing loss by harming auditory structures.
Hair cellRelated: Some ototoxic agents selectively injure hair cells, impairing hearing or balance.
StreptomycinRelated: Streptomycin can cause vestibular and, less often, auditory toxicity.
DiureticsRelated: High doses of some loop diuretics can injure the inner ear.
NeomycinRelated: Neomycin can injure inner-ear sensory cells if enough drug reaches them.