Miconazole%25252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252520vaginal%25252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252520pessary

# Miconazole Vaginal Pessary ## Overview Miconazole is an imidazole antifungal agent that disrupts fungal cell membrane synthesis. Vaginal pessaries are designed for localized treatment of vaginal fungal infections. ## Primary Indications Vulvovaginal candidiasis (yeast infection). ## Adult Dosing * **100 mg pessary:** Insert one pessary vaginally at bedtime for 7 days. * **200 mg pessary:** Insert one pessary vaginally at bedtime for 3 days. * **100 mg/6.5% topical cream:** For associated vulvar itching or irritation, apply a thin layer to affected external areas twice daily for up to 7 days. ## Pediatric Dosing Data for pediatric use of miconazole vaginal pessaries is limited. Extrapolation from oral or topical formulations suggests caution. Consult a pediatrician for appropriate dosing in children. ## Dose Adjustments No dose adjustments are typically required for renal or hepatic impairment when used as a vaginal pessary due to minimal systemic absorption. ## Contraindications * Hypersensitivity to miconazole or any component of the formulation. * Concurrent use with warfarin (risk of bleeding). ## Adverse Effects * **Common:** Vaginal burning, itching, irritation, pelvic cramps. * **Less Common:** Headache, rash, urticaria. ## Key Drug Interactions * **Warfarin:** Miconazole can inhibit CYP2C9, increasing warfarin levels and the risk of bleeding. Closely monitor INR if used concurrently. * **CYP3A4 substrates:** Miconazole inhibits CYP3A4, potentially increasing serum concentrations of drugs metabolized by this enzyme (e.g., some statins, benzodiazepines, calcium channel blockers). ## Monitoring * Monitor for signs and symptoms of vaginal candidiasis resolution. * Monitor for adverse effects, particularly vaginal irritation. * Monitor INR closely if used concomitantly with warfarin. ## Clinical Pearls * Complete the full course of treatment, even if symptoms improve earlier. * Avoid sexual intercourse during treatment to prevent further irritation and potential transmission. * Consider a follow-up visit if symptoms do not improve after treatment or recur. * The pessary may weaken latex condoms and diaphragms, reducing their effectiveness. *** **Disclaimer:** This information is intended for healthcare professionals. Always consult the current prescribing information and your institution's guidelines before making clinical decisions.