among women with nonspecific vaginitis , m. hominis persisted in only a third of those treated with metronidazole as compared with at least 70 % of those treated with ampicillin ( p = 0.01 ) , even though m. hominis is resistant in vitro to metronidazole and to its acid and hydroxy metabolites .
C0085166
nonspecific vaginitis
C0025872
metronidazole