NCIt definition : The stearate salt form of erythromycin, a broad-spectrum, topical macrolide antibiotic
with antibacterial activity. Erythromycin stearate diffuses through the bacterial
cell membrane and reversibly binds to the 50S subunit of the bacterial ribosome. This
prevents bacterial protein synthesis. Erythromycin stearate may be bacteriostatic
or bactericidal in action, depending on the concentration of the drug at the site
of infection and the susceptibility of the organism involved.;