Meclizine Oral belongs to the class of Anti-Histamines. This prescription medicine is used for the prevention and treatment of nausea, vomiting, and dizziness. It is usually prescribed for the treatment of vertigo i.e. spinning sensation and motion sickness. The side effects of Meclizine Oral include - Headache - Drowsiness - Exhaustion and fatigue - Blurry vision - Dry mouth - Trouble breathing - Swelling of tongue and throat Meclizine Oral interacts with the following drugs. - Insomnia-treating drugs e.g. Triazolam, Zolpidem - Anti-Psychotic drugs e.g. Haloperidol, Clozapine - Anti-Anxiety drugs e.g. Lorazepam, Diazepam - Anti-Allergy drugs e.g. Clemastine, Hydroxyzine - Muscle spasm-treating drugs e.g. Cyclobenzaprine, Methocarbamol