Meclizine
"I use meclizine/antivert every day of my life.. Every 6 hours, I can take up to 50mg. Unfortunately, I have a horrible diagnosis of vertigo, followed with BPPV. I rely on this medicine so much, I feel as if it's becoming ineffective.. :( Had real bad attacks in November. I got admitted to the hospital, and it took multiple doses, & 14  hours for the room to just stop spinning completely.. I have bad issues with my vertigo still. Can't sleep without the room spinning, it's hard to drive sometimes, and it's hard to function without feeling like I'm about to get dizzy all over again. Ugh. Just hope it stops completely soon. Been dealing with this daily since April 2012.."