Generic Vertin (Betahistine Dihydrochloride) belongs to the class of drugs known as antihistamine. It is used to treat and to prevent dizziness, nausea and vomiting caused by motion sickness. Vertin is available in tablet form with 3 different strengths. It is essential that you buy Vertin online or from any of the local drugstores only after discussing with your health care provider about the positive and negative effects of this medication.