Comparative Pharmacology
Head-to-head clinical analysis: ECONAZOLE NITRATE versus SELSUN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ECONAZOLE NITRATE versus SELSUN.
ECONAZOLE NITRATE vs SELSUN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Econazole nitrate, an imidazole antifungal, inhibits fungal cytochrome P450 14α-demethylase (CYP51), blocking ergosterol synthesis, disrupting fungal cell membrane integrity and function.
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 a thin layer to affected area twice daily (morning and evening). Vaginal: One applicatorful (150 mg) intravaginally at bedtime for 3 days. Rectal candidiasis: One 150 mg suppository rectally at bedtime for 3 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 elimination half-life approximately 8-10 hours; clinical relevance: supports twice-daily topical dosing for sustained antifungal effect.
Not well defined due to minimal systemic absorption; topical application yields negligible plasma levels.
Primarily hepatic metabolism; <1% unchanged in urine; 30-45% in feces as metabolites; minimal biliary excretion.
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