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# Miconazole Vaginal Pessary
## Overview
Azole antifungal agent. Used intravaginally for local treatment of vulvovaginal candidiasis. Minimal systemic absorption (<2%) with vaginal administration.
## Primary Indications
- Vulvovaginal candidiasis (uncomplicated and recurrent)
- *Candida* species susceptible to miconazole (including *C. albicans*, some non-albicans species)
## Adult Dosing
**Uncomplicated VVC:**
- Miconazole 100 mg pessary: Insert 1 pessary once daily at bedtime for 7 days
- Miconazole 200 mg pessary: Insert 1 pessary once daily at bedtime for 3 days
- Miconazole 400 mg pessary (single dose): Insert 1 pessary once at bedtime
**Recurrent VVC (maintenance):**
- 100 mg or 200 mg 1–2 times per week for up to 6 months (individualize; exact regimen depends on local protocol and recurrence pattern)
## Pediatric Dosing
- **Adolescents (postmenarche):** Same dosing as adults for uncomplicated VVC
- **Prepubertal children:** Safety and efficacy not established for vaginal pessary formulation. Avoid unless directed by specialist. Alternative formulations (cream applied externally) may be considered.
## Dose Adjustments
- **Hepatic impairment:** No systemic dose adjustment needed (minimal absorption). Use with caution if severe hepatic impairment.
- **Renal impairment:** No dose adjustment required.
- **Pregnancy:** Category C. Avoid high-dose regimens. Short courses (100 mg × 7 days) preferred. Use only if clearly needed.
- **Breastfeeding:** Minimal systemic absorption; compatible with breastfeeding.
## Contraindications
- Known hypersensitivity to miconazole or any excipient
- Avoid concurrent use with latex-based condoms or diaphragms (may weaken latex; potentially reduced efficacy)
## Adverse Effects
- **Local irritation:** Burning, itching, irritation, discharge
- **Allergic reaction:** Rare (contact dermatitis)
- **Abdominal cramping:** Mild, self-limited
- **Vaginal spotting:** Uncommon
## Key Drug Interactions
- **Warfarin (oral):** Potentially increased INR (rare case reports). Monitor INR if concurrent use.
- **Immunosuppressants (topical not expected to interact systemically; minimal absorption)**
- **Latex products:** Use alternative contraception during treatment and for 5 days after last dose
## Monitoring
- **Efficacy:** Resolution of itching, discharge, and irritation within 3–7 days of completing course
- **Recurrence:** If symptoms persist beyond 7 days, reassess for resistant infection or alternative diagnosis (bacterial vaginosis, mixed infection)
- **Pregnancy outcome:** No routine lab monitoring required
## Clinical Pearls
- Administer at bedtime to allow dissolution and retention; use for full duration even if symptoms improve.
- Single-dose 400 mg is convenient but may be less effective in severe or recurrent cases.
- Recurrent VVC requires investigation (HbA1c, HIV, culture sensitivity). Consider oral azole (fluconazole) if miconazole fails.
- If using concurrent corticosteroid (e.g., topical hydrocortisone) for severe inflammation, apply steroid first, then pessary.
- Do not use spermicide or vaginal douches during treatment.
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*Disclaimer: This information is for educational purposes only. Dosing and prescribing depend on local guidelines, patient-specific factors, and product availability. Always verify current prescribing information from the manufacturer's label and consult local formulary.*
