The intranasal route of administration provides an effective and convenient means of delivering a number of compounds to the systemic circulation when the more usual oral or parenteral routes are inappropriate. The preservation of multi-dose nasal drops and sprays is essential. However, preservatives should not impair any of the normal functions of the nasal cavity, such as mucociliary clearance, since patients with compromised clearance can suffer extensively from respiratory tract infections. This paper reviews the results of a number of investigations into the effects of a range of commonly used preservatives on the mucociliary clearance apparatus.
|Number of pages||9|
|Publication status||Published - 31 Dec 1988|