Treatment of Vaginal Candidiasis (Non-glabrata)
For uncomplicated vaginal candidiasis, either a single 150-mg oral dose of fluconazole or a topical antifungal agent for 1-7 days is recommended as first-line therapy, with both options showing equivalent efficacy. 1
Classification and Diagnosis
Before initiating treatment, it's important to properly classify the infection:
Uncomplicated vulvovaginal candidiasis (90% of cases):
- First episode or infrequent episodes
- Mild-to-moderate symptoms
- Likely caused by Candida albicans
- Occurs in non-immunocompromised patients
Complicated vulvovaginal candidiasis (10% of cases):
- Severe symptoms
- Recurrent infections (≥4 episodes in 12 months)
- Non-albicans Candida species
- Occurs in immunocompromised or diabetic patients
Diagnosis should be confirmed by:
- Wet mount preparation with saline and 10% potassium hydroxide showing yeast or hyphae
- Normal vaginal pH (4.0-4.5)
- Vaginal culture if wet mount is negative but symptoms persist
Treatment Algorithm
1. Uncomplicated Vulvovaginal Candidiasis
Option A: Oral Therapy
- Fluconazole 150 mg single oral dose 1, 2
- Advantages: Convenient, single dose, systemic coverage
- Disadvantages: Potential drug interactions, not for use in pregnancy
Option B: Topical Therapy (all equally effective) 1
- Clotrimazole 1% cream 5g intravaginally for 7-14 days, OR
- Clotrimazole 100 mg vaginal tablet for 7 days, OR
- Clotrimazole 500 mg vaginal tablet, single application, OR
- Miconazole 2% cream 5g intravaginally for 7 days, OR
- Miconazole 200 mg vaginal suppository for 3 days, OR
- Miconazole 100 mg vaginal suppository for 7 days, OR
- Other azole products (terconazole, butoconazole, tioconazole)
2. Severe Acute Vulvovaginal Candidiasis
- Fluconazole 150 mg every 72 hours for a total of 2-3 doses 1
- OR extended duration topical therapy (7-14 days)
3. Recurrent Vulvovaginal Candidiasis (≥4 episodes/year)
- Induction phase: 10-14 days of topical therapy or oral fluconazole
- Maintenance phase: Fluconazole 150 mg weekly for 6 months 1, 3
- This regimen achieves control of symptoms in >90% of patients
Important Clinical Considerations
Efficacy: Both oral and topical antifungal formulations achieve equivalent results (>90% response rates in uncomplicated cases) 1, 4
Patient Preference: Oral therapy is generally preferred by patients over topical applications 5
Side Effects:
- Fluconazole: Headache (13%), nausea (7%), abdominal pain (6%) 2
- Topical agents: Local irritation, burning sensation
Special Populations:
Common Pitfalls:
Follow-up
- For uncomplicated cases, follow-up is not necessary if symptoms resolve
- For complicated or recurrent cases, follow-up is recommended to ensure resolution
- After cessation of maintenance therapy for recurrent infections, a 40-50% recurrence rate can be anticipated 1
Remember that proper diagnosis is essential before treatment, as symptoms of vulvovaginal candidiasis can mimic other conditions including sexually transmitted infections.