The Use of a Radiolabelled Saccharin Solution to Monitor the Effect of the Preservatives Thiomersal, Benzalkonium Chloride and EDTA on Human Nasal Clearance

Author:

Batts Alison H1,Marriott Christopher1,Martin Gary P1,Bond Steven W2,Greaves Jane L3,Wilson Clive G3

Affiliation:

1. Pharmaceutical Sciences Research Group, Department of Pharmacy, Brighton Polytechnic, Brighton BN2 4GJ

2. Wellcome Foundation Ltd., Dartford, Kent

3. Department of Physiology and Pharmacology, Queen's Medical Centre, Nottingham, UK

Abstract

Abstract The effect of thiomersal, benzalkonium chloride and ethylenediaminetetraacetic acid (EDTA) on the nasal mucociliary clearance of healthy volunteers has been investigated using a modified saccharin test and gamma scintigraphy concomitantly. A significant correlation was found between the two techniques. Using each subject as his/her own control, none of the preservatives significantly altered the rate of clearance or proportion cleared from the nasal cavity after the administration of a single dose. This result is at variance with some in-vitro findings.

Publisher

Oxford University Press (OUP)

Subject

Pharmaceutical Science,Pharmacology

Reference39 articles.

1. Nasal clearance in monozygotic twins;Andersen;Am. Rev. Respir. Dis.,1974

2. Distribution and removal of human serum albumin-technetium 99m instilled intranasally;Aoki;Br. J. Clin. Pharmacol.,1976

3. Human nasal mucus flow rates;Bang;John Hopkin Med. J.,1967

4. The effect of some preservatives used in nasal preparations on mucociliary clearance;Batts;J. Pharm. Pharmacol.,1989

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