6-O-Methylerythromycin mix. with 6,16,18,20-Tetrahydroxy-1'-isobutyl-14-methoxy-7,9,15,17,19, 21,25-heptamethylspiro[9,4-(epoxypentadeca[1,11,13]trienimino)-2H-furo[2',3':7,8]naphth[1,2-d]imidazole- AIDS-008318 AIDS008318 Clarithromycin & Rifabutin