====== Non-pulsatile tinnitus ======

1. occlusion of external ear: cerumen, foreign body

2. middle ear infection (otitis media)

3. otosclerosis

4. stapedial muscle spasms: as occurs in hemifacial spasm

5. CP-angle tumors: including vestibular schwannoma 

6. Meniere’s disease 

7. labyrinthitis

8. endolymphatic sac tumors: e.g. as in von Hippel-Lindau disease 

9. drugs

a) salicylates:aspirin,bismuthsubsalicylate(PeptoBismol®)

b) quinine

c) aminoglycoside toxicity: streptomycin, tobramycin (tinnitus precedes hearing loss)