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# Miconazole Vaginal Pessary
## Overview
Miconazole is an imidazole antifungal agent.
## Primary Indications
Treatment of vulvovaginal candidiasis (yeast infection).
## Adult Dosing
A single vaginal pessary (100 mg) inserted vaginally at bedtime.
Alternatively, a single vaginal pessary (200 mg) inserted vaginally at bedtime.
Alternatively, a single vaginal pessary (1200 mg) inserted vaginally at bedtime.
## Pediatric Dosing
Safety and efficacy in pediatric patients have not been established. Use is not recommended.
## Dose Adjustments
No dose adjustments are necessary for renal or hepatic impairment.
## Contraindications
Hypersensitivity to miconazole or any component of the formulation.
## Adverse Effects
Common: Vulvovaginal burning, itching, irritation.
Uncommon: Abdominal pain, headache, rash.
## Key Drug Interactions
Miconazole is a potent inhibitor of CYP3A4 and CYP2C9.
* **Warfarin:** Increased risk of bleeding. Monitor INR closely.
* **Sulfonylureas:** Increased risk of hypoglycemia. Monitor blood glucose.
* **Statins (CYP3A4 substrates):** Increased risk of myopathy. Avoid coadministration or use lowest effective statin dose.
* **Calcium channel blockers, cyclosporine, tacrolimus, sirolimus:** Increased plasma concentrations. Monitor for toxicity.
## Monitoring
* Monitor for signs and symptoms of vulvovaginal candidiasis.
* Monitor for adverse effects, particularly local irritation and signs of systemic absorption if used concomitantly with CYP-inhibited drugs.
* If coadministered with warfarin, monitor INR regularly.
## Clinical Pearls
* The 100 mg, 200 mg, and 1200 mg pessaries are available in different treatment durations (e.g., 1-day, 3-day, 7-day regimens). The specific pessary strength will dictate the duration of therapy.
* Avoid intercourse during treatment.
* Consider concurrent treatment of sexual partners if recurrent infections are present, although this is not routinely recommended for uncomplicated vulvovaginal candidiasis.
* Pessaries may interact with latex condoms and diaphragms, reducing their effectiveness.
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**Disclaimer:** This information is intended for healthcare professionals. Always consult the most current prescribing information and institutional protocols for complete and up-to-date guidance. Dosing and recommendations may vary based on individual patient factors and clinical judgment.
