Effects of Erythromycin, Aminoglucosides and Doxycycline on Mucociliary Activity in vitro of Rabbit Trachea

Abstract
The effect of different antibiotics [penicillins] on the mucociliary activity of the upper respiratory tract of rabbit was tested in vitro. Erythromycin base had no effect, although erythromycin lactobionate had a minor inhibitory effect. Kanamycin and gentamicin had no inhibitory effect in high concentrations. Doxycycline had the highest mucociliary inhibitory effect; however, the toxic concentrations are > 10 times the clinically relevant serum levels after oral administration.