ABSTRACT STABLE PRESERVATIVE FREE PHARMACEUTICAL COMPOSITION OF AZELASTINE? The present invention relates to pharmaceutical composition comprising azelastine, or a pharmaceutically acceptable salt or ester thereof including azelastine hydrochloride, wherein composition is essentially free of preservative. The present invention also relates to the compositions that minimize or mask the unpleasant bitter taste associated with post-nasal drip, of the compositions into the oral cavity, upon intranasal or ocular administration of the compositions. The invention also relates to processes for the preparation of such pharmaceutical compositions and use thereof for the symptomatic relief of allergic rhinitis, non-allergic vasomotor rhinitis, as well as other disorders.