Comparative Pharmacology
Head-to-head clinical analysis: MICONAZOLE 3 versus SELSUN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: MICONAZOLE 3 versus SELSUN.
MICONAZOLE 3 vs SELSUN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Miconazole inhibits fungal cytochrome P450 14α-demethylase (CYP51), thereby blocking the conversion of lanosterol to ergosterol, an essential component of the fungal cell membrane. This leads to increased membrane permeability, leakage of cellular contents, and fungal cell death.
Selenium sulfide is an antifungal agent that inhibits the growth of Malassezia species by reducing selenium to elemental selenium, which is toxic to the fungus. It also reduces sebum production via unknown mechanisms.
For vaginal candidiasis: 200 mg (one suppository) intravaginally at bedtime for 3 consecutive days.
Apply 5-10 mL of 2.5% selenium sulfide lotion to affected areas of scalp, lather with water, leave on for 2-3 minutes, then rinse thoroughly. Use twice weekly for 2 weeks, then once weekly for maintenance.
None Documented
None Documented
Terminal half-life is approximately 24 hours (range 20-30 hours) following topical vaginal application; prolonged in hepatic impairment.
Not well defined due to minimal systemic absorption; topical application yields negligible plasma levels.
Primarily hepatic metabolism; <1% excreted unchanged in urine; fecal elimination accounts for ~50% of metabolites.
Selenium sulfide is minimally absorbed; absorbed portions are excreted renally (approx. 80-90%) and fecally (10-20%).
Category A/B
Category C
Antifungal
Antifungal/Antiseborrheic