Comparative Pharmacology
Head-to-head clinical analysis: MYIDYL versus SELSUN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: MYIDYL versus SELSUN.
MYIDYL vs SELSUN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
c-Met/ALK inhibitor; inhibits receptor tyrosine kinases MET and ALK, blocking downstream signaling pathways including PI3K/AKT and RAS/RAF/MEK/ERK, leading to reduced tumor cell proliferation and angiogenesis.
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.
50 mg orally twice daily without regard to meals.
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 12 hours (range 10–14 hours) in adults with normal renal function; prolonged in renal impairment (up to 24–30 hours).
Not well defined due to minimal systemic absorption; topical application yields negligible plasma levels.
Primarily renal excretion as unchanged drug (~60%) and metabolites (~30%); biliary/fecal excretion accounts for ~10%.
Selenium sulfide is minimally absorbed; absorbed portions are excreted renally (approx. 80-90%) and fecally (10-20%).
Category C
Category C
Antifungal
Antifungal/Antiseborrheic