in addition , serum concentrations of erythromycin were measured during continuous treatment ( 250 mg base every 6th hour ) with erythromycin stearate ( resibion ) or enteric-coated erythromycin base ( etromycin ) in ten healthy volunteers , in both fasting and non-fasting conditions .
C0059566
erythromycin stearate
C0014806
erythromycin base