gastric mucosal concentrations of erythromycin , amoxycillin , ampicillin and ciprofloxacin were determined in patients at upper gastrointestinal endoscopy 38-480 min after a 500 mg dose of erythromycin ethyl succinate , erythromycin stearate , amoxycillin , pivampicillin or ciprofloxacin .
C0014806
erythromycin
C0059566
erythromycin