in contrast , the imidazole drugs having the imidazole ring fused to a benzene ring , i.e . benzimidazoles ( astemizole , mebendazole , thiabendazole ) and those having an aliphatic side chain on the n-1 of the imidazole ring ( carbimazole , metronidazole , nimorazole , tinidazole ) were only weak inhibitors of aromatase .
C0005050
benzimidazoles
C0085170
astemizole