There are currently no medications that can cure chronic tinnitus or gradual hearing loss. Because you manage diabetes and heart disease, introducing new medications requires caution, as some heart drugs (like certain diuretics) can actually worsen tinnitus. The safest and most effective approach is to consult an ENT specialist or audiologist. They can evaluate you for hearing aids, which improve hearing and naturally mask tinnitus. Additionally, ask your doctor to review your current medications to ensure none are ototoxic (damaging to the ears). Keeping your blood sugar well-controlled is also vital, as it protects the delicate blood vessels in your inner ears.