How does antivert (meclizine) for positional vertigo?

Not effective: You should know that Antivert (meclizine) or generically called Meclizine is an antihistamine and as such will only effect your brain and cause sedation. It has no effect on the inner ear. Benign positional vertigo is the result of loose calcium carbonate crystals in the inner ear and will respond to head exercises or physical therapy by a trained therapist in inner ear vertigo.