<p>I am prone to severe vertigo (like violent motion sickness even when there is no actual motion), and never know when it might hit. The treatment is motion sickness pills and, on my doctors advice, I carry them with me at all times. The originally prescribed med when I first got vertigo was meclizine. Doc told me to buy an OTC bottle of meclizine to carry with me. You can find it at the pharmacy for considerably cheaper than the name brand motion sickness pills. (Bonine is just a brand name for meclizine, at a much higher price).</p>