Abstract: The invention relates to a novel pharmaceutical preparation which can be administered nasally and is based on an aqueous solution, emulsion or the like which comprises at least one mucosally absorbable and/or locally acting active pharmaceutical ingredient, at least one preservative formed by benzalkonium chloride alone or together with other preservative substances, at least one buffer which keeps the pH at 4 to 6, and in addition at least one osmotic agent and/or at least one wetting agent and which is characterized in that the preparation has a substantially improved ciliary tolerability owing to the fact that in the preparation a buffer based on malic acid is present instead of a buffer which has been employed to date in the pharmaceutical preparation and is based on citrate(s), phosphate(s) and/or acetate(s)—partly or completely replacing it (them)—while retaining the composition, concentration and amount ratios, intended in each case for the pharmaceutical preparation, of active ingredient(s), preservat