Fluconazole Dosing for Prevention of Yeast Infections After Antibiotics

Dosing Recommendations

For women requiring prophylaxis against yeast infections after antibiotic use, a single 150 mg oral dose of fluconazole is recommended 1
For women with history of severe vulvovaginal candidiasis, consider fluconazole 150 mg every 72 hours for a total of 2-3 doses for better clinical outcomes 1
For women with recurrent vulvovaginal candidiasis, initial induction therapy with 10-14 days of oral fluconazole, followed by maintenance therapy with fluconazole 150 mg weekly for 6 months 2, 3

Before initiating prophylactic therapy, confirm previous diagnosis of vulvovaginal candidiasis to ensure appropriate treatment 3
Most vaginal candidiasis (90%) is caused by Candida albicans, which responds well to fluconazole; however, non-albicans species may require alternative approaches 2, 3