AZITHROMYCIN 2-HYDRATE;1-Oxa-6-azacyclopentadecan-15-one, 13-(2,6-dideoxy-3-C-methyl-3-O-methyl-.alpha.-L-ribo-hexopyranosyl)oxy-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-3,4,6-trideoxy-3-(dimethylamino)-.beta.-D-xylo-hexopyranosyloxy-, dihydrate, (2R,3S,4R,5R,8;AZITHROMYCINDIHYDRATE(PATENTED-NOSUPPLY);1-Oxa-6-azacyclopentadecan-15-one, 13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-a-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-, dihydrate, (2R,3S,4R,5R,8R,10R;1-Oxa-6-azacyclopentadecan-15-one, 13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-a-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-, dihydrate, [2R-(2R*,3S*,4R*,5R*,8R*,10R*,11R*,12S*,13S*,14R*)]-;azithromycin hydrate;Azithromycin (100 mg);(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-Methyl-3-O-Methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptaMethyl-11-[[3,4,6-trideoxy-3-(diMethylaMino)-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one Dihydrate