Using at bedtime to prevent/reduce night hits is an old trick. Pretty good....

As an abortive for an attack when you are awake--modest track record, at best, and requires taking it at the very first signs of a developing attack. Second, it's the only med I've used where it was clear that the expiration date means something, i.e., get fresh supply.

Have you tried melatonin at bedtime to block attacks? Some find it useful.

Recently, a couple of reports of using Zyprexa to prevent attacks (taking a bedtime). This is a new use and not much data beyond a few individual reports.