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Miconazole Data - Uses, Dosage, Drug class, Brand name, Warnings, etc



Pharmacology Miconazole is an imidazole antifungal agent available in topical preparations and as an IV preparation solubilized in polyethoxylated castor oil (Cremophor EL).
Inhibits fungal cytochrome P450, blocking ergosterol synthesis and disrupting fungal cell membranes.
Adult Dosage IV:
- 1.2–3.6 g/day in 3 divided doses
- Dilute in ≥200 mL D5W or NS, infuse over 30–60 min
Topical for tinea infections:
- Apply twice daily
Vaginal Tablet for vulvovaginal candidiasis:
- 100 mg at bedtime for 7 days
- OR 200 mg at bedtime for 3 days
Vaginal Cream for vulvovaginal candidiasis:
- 5 g at bedtime for 7 days
Pediatric Dosage IV:
- <1 yr: 15–30 mg/kg/day
- 1–12 yr: 20–40 mg/kg/day
- Do not exceed 15 mg/kg/dose
Topical:
- Same as adult dosage
Vaginal Cream/Tablet:
- <12 yr: Safety and efficacy not established
- ≥12 yr: Same as adult dosage
Dosage Forms - Injection: 10 mg/mL
- Topical Cream, Spray, Powder: 2%
- Vaginal Cream: 2%
- Vaginal Suppository: 100 mg, 200 mg
Combination Packages:
- Monistat Dual-Pak, M-Zole 3: Vaginal Suppository 200 mg (#3) + Vaginal Cream 2%
- Monistat 7: Vaginal Suppository 100 mg (#7) + Vaginal Cream 2%
Adverse Reactions IV:
- Frequent: Phlebitis, pruritus, nausea, vomiting, fever, chills, rash
- Serious (likely vehicle-related): Cardiorespiratory arrest, hyponatremia
Notes - Restrict IV use to fungal infections resistant to amphotericin B (e.g., Scedosporium apiospermum) due to serious toxicity and questionable efficacy
- Topical/vaginal effects similar to clotrimazole
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