Аннтотация

© 2018, Dynasty Publishing House. All rights reserved. The objective. A comparative study of the dose uniformity, dose reproducibility, imprint areas on a planar simulation model as indicators of dispersion of spray-aerosol pharmaceutical forms of various trademarks for treatment of diseases of the mouth cavity and throat. Materials and methods. As objects of study we selected 10 drugs manufactured in the «aerosol» and «spray» forms. Test for dose uniformity was performed in accordance with articles of the State Pharmacopoeia of the Russian Federation «Aerosols and sprays», comparison of dose reproducibility was performed by comparing average dose mass dispersions according to Fisher. The test for the width of dispersion was performed by imprints obtained of a single release of drugs on filter paper with Dragendorff’s reagent and plates for thin-layer chromatography. Results. All metered-dose sprays successfully passed the test for dose mass uniformity. The test for dose mass reproducibility showed a high enough stability of dosage in all the examined drugs: the percentage error of the average dose mass was at the level 1–3%. The test for dispersion width performed on planar simulation models showed significant differences in the character of drug dispersion. For comparing the width of dispersion we calculated imprint areas from a single-dose release on PSM, which permitted to determine drugs with wide and fine dispersion as the most effective with respect to the way of drug delivery to the focus of inflammation – on the mucous membranes of the throat and mouth cavity. Conclusion. The optimal combination of the examined spray characteristics was found in the spray Tantum® Verde, which permits to recommend it as a drug of choice in paediatrics for local therapy of inflammatory diseases of the throat in children beginning from the age of 3 years.