“…4 Uncontrolled trials in the French3 and Japanese5 literature have indicated benefit from sodium valproate in selected patients, but its use seems not to have been described in English apart from a specialist monograph 2. Tinnitus loudness5 and sensorineural pathology3 but not lignocaine response5 seem to predict response. Valproate may also differ from carbamazepine in that it seems better tolerated in an unselected tinnitus population 3.…”