abboticine beritromicina berythromycin berythromycine berythromycinum bristamycin dowmycin e eratrex erypar erythrocin erythrocin stearate erythromycin b ethril flurithromicina flurithromycime flurithromycine flurithromycinum fluritromicina fluritromycinum flurizic gallimycin meberyt qidmycin wyamycin s