Comparative Pharmacology
Head-to-head clinical analysis: MONISTAT DERM versus SELSUN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: MONISTAT DERM versus SELSUN.
MONISTAT-DERM vs SELSUN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Miconazole inhibits fungal lanosterol 14α-demethylase, a cytochrome P450 enzyme, thereby blocking ergosterol synthesis and disrupting fungal cell membrane integrity.
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.
Topical: Apply once daily to affected areas for 2-4 weeks. Vaginal: One 200 mg suppository at bedtime for 3 days, or one 100 mg suppository at bedtime for 7 days, or one 1200 mg suppository as a single dose.
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 elimination half-life is approximately 24–30 hours, supporting twice-daily or once-daily dosing for dermatologic infections.
Not well defined due to minimal systemic absorption; topical application yields negligible plasma levels.
Primarily fecal (biliary) elimination as unchanged drug and metabolites; <1% renal excretion of unchanged drug.
Selenium sulfide is minimally absorbed; absorbed portions are excreted renally (approx. 80-90%) and fecally (10-20%).
Category C
Category C
Antifungal
Antifungal/Antiseborrheic