Fluconazole inhibits the growth of the yeast Candida albicans, which is most commonly responsible for Vaginal yeast infections. This allows our body’s defenses to eliminate the fungus and resolve the discharge. It does this by blocking the effects of an enzyme called lanosterol 14-α-demethylase which is responsible for the formation of ergosterol, an important component of the yeast’s cell wall. This causes toxic substances to build up inside the yeast, reducing its ability to build up and cause an infection.