Generic name: Azelastine hydrochlorideBrand names: Optivar (Spanish name, Az Ofteno)Why is Optivar prescribed?Optivar is taken to relieve and prevent the itchy eyes brought on by seasonal allergies. The drug usually starts to work within 3 minutes of placing the drops in the eye, and its effects usually last for about 8 hours. Optivar may also be used for purposes other than those listed in this medication guide. Please consult your physician before taking any medication.