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# Miconazole Vaginal Pessary
## Overview
Miconazole vaginal suppositories (pessaries) are azole antifungals used for the treatment of vulvovaginal candidiasis (yeast infection).
## Primary Indications
* Treatment of vulvovaginal candidiasis.
## Adult Dosing
* **100 mg vaginal suppository:** Insert 1 suppository vaginally at bedtime for 7 days.
* **200 mg vaginal suppository:** Insert 1 suppository vaginally at bedtime for 3 days.
* **Miconazole nitrate vaginal cream 2% (100 mg equivalent):** Insert 1 applicatorful (5 grams) vaginally at bedtime for 7 days.
* **Miconazole nitrate vaginal cream 4% (200 mg equivalent):** Insert 1 applicatorful (5 grams) vaginally at bedtime for 3 days.
*Note: Specific dosing regimens may vary by product and local protocol. Always refer to the product labeling.*
## Pediatric Dosing
Dosing in pediatric patients has not been established for the vaginal pessary. Consult with a pediatrician or specialist for guidance.
## Dose Adjustments
No dose adjustments are typically required for renal or hepatic impairment with vaginal administration.
## Contraindications
* Hypersensitivity to miconazole or any component of the formulation.
* Concomitant use with warfarin (increased risk of bleeding; see Drug Interactions).
## Adverse Effects
* **Common:** Vaginal burning, itching, irritation. Pelvic cramping may occur.
* **Less Common:** Headache, rash.
## Key Drug Interactions
* **Warfarin:** Miconazole is a potent inhibitor of CYP2C9 and can significantly increase warfarin's anticoagulant effect, leading to an increased risk of bleeding. Concurrent use is generally contraindicated. If coadministration is unavoidable, close monitoring of INR is essential, and warfarin dosage adjustments may be necessary.
* **Other CYP3A4 substrates:** Miconazole can inhibit CYP3A4 and may increase concentrations of other drugs metabolized by this enzyme. Caution and monitoring may be warranted.
## Monitoring
* Monitor for signs and symptoms of vulvovaginal candidiasis.
* Monitor for adverse effects, particularly vaginal irritation.
* If coadministered with warfarin, monitor INR closely.
## Clinical Pearls
* Vaginal suppositories can be used during menstruation.
* Avoid sexual intercourse during treatment.
* It is recommended to complete the full course of treatment, even if symptoms improve earlier.
* Consider a 7-day regimen for potentially better cure rates and reduced recurrence.
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**Disclaimer:** This information is intended for healthcare professionals. It is essential to consult the official prescribing information and current clinical guidelines for the most up-to-date and complete drug information before making any clinical decisions.
