Meclizine hydrochloride (Antivert®, Bonine®, Dramamine® Less Drowsy Formula) is an antihistamine medication that is available both over-the-counter (otc) and by prescription. The prescription version is approved for treating motion sickness and vertigo, while the over-the-counter version is only approved to treat motion sickness.
The over-the-counter versions (Bonine, Dramamine Less Drowsy Formula) are only available in one strength -- 25 mg tablets and chewable tablets. The medication is typically taken once or twice a day. Meclizine usually works best if you take it before motion sickness symptoms begin, although you can expect some relief even if you wait until symptoms develop.
As with any medication, meclizine may cause side effects. Some of the side effects that may occur with this drug include blurred vision, dry mouth, and drowsiness. When side effects do occur, in most cases, they are mild and either do not require medical attention or can be treated easily.
(Click Meclizine for more information on when and how to take meclizine over-the-counter products, to find out how this medication works, and to learn about the warnings associated with this drug.)