A patient on ATT develops tinnitus and hearing loss due to:
Isoniazid
Pyrazinamide
Streptomycin
Rifampicin
(c) Streptomycin(Ref. Cummings, 6th ed., 2371)Streptomycin is predominantly vestibulotoxic. In very high doses they can affect the cochlear system also, leading to hearing loss and tinnitus.
Miscellaneous Ear