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# Miconazole Vaginal Pessary ## Overview Miconazole is an imidazole antifungal agent. The vaginal pessary formulation is used for the treatment of vulvovaginal candidiasis (yeast infections). ## Primary Indications Vulvovaginal candidiasis (yeast infections) caused by susceptible Candida species. ## Adult Dosing * **Single Dose Treatment:** One 1200 mg miconazole nitrate vaginal suppository (pessary) inserted high into the vagina at bedtime. * **Three-Day Treatment:** One 200 mg miconazole nitrate vaginal suppository inserted high into the vagina at bedtime for 3 consecutive nights. * **Seven-Day Treatment:** One 100 mg miconazole nitrate vaginal suppository inserted high into the vagina at bedtime for 7 consecutive nights. *Note: The specific strength and duration of treatment may vary based on product availability and clinical judgment.* ## Pediatric Dosing Dosing for pediatric patients has not been established for the vaginal pessary formulation. Use in pediatric patients is generally not recommended unless specifically directed by a healthcare provider. ## Dose Adjustments No specific dose adjustments are typically required for renal or hepatic impairment for vaginal administration. ## Contraindications * Hypersensitivity to miconazole or any component of the formulation. ## Adverse Effects Common side effects include vaginal burning, itching, irritation, and pelvic cramps. ## Key Drug Interactions * **CYP3A4 Inhibitors:** Miconazole is a potent inhibitor of CYP3A4. Systemic absorption from vaginal administration is generally low, but caution is advised if used concurrently with medications metabolized by CYP3A4, especially those with a narrow therapeutic index (e.g., certain statins, anticoagulants, immunosuppressants). Avoid concomitant use with oral miconazole or other strong CYP3A4 inhibitors. * **Warfarin:** Potential for increased INR and bleeding risk. Monitor INR closely if used concurrently. ## Monitoring * Clinical signs and symptoms of vulvovaginal candidiasis (e.g., itching, burning, discharge). * For patients on warfarin, monitor INR. ## Clinical Pearls * Ensure the pessary is fully inserted into the vagina. * Treatment may cause some leakage; wearing a sanitary pad can help. * Complete the full course of treatment, even if symptoms improve earlier. * Avoid intercourse during treatment to prevent reinfection or transmission. * If symptoms do not improve after completing treatment, or if they worsen, consult a healthcare provider. * The safety and efficacy of miconazole vaginal pessaries in pregnant women have not been fully established. Consult a healthcare provider for guidance during pregnancy. *** **Disclaimer:** This information is intended for clinical pharmacy use and is not a substitute for professional medical advice. Always consult with a qualified healthcare provider and refer to the most current prescribing information for complete details before making any treatment decisions.