Comparative Pharmacology
Head-to-head clinical analysis: GRISEOFULVIN ULTRAMICROSIZE versus NATACYN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GRISEOFULVIN ULTRAMICROSIZE versus NATACYN.
GRISEOFULVIN, ULTRAMICROSIZE vs NATACYN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Binds to tubulin, disrupting microtubule function and inhibiting fungal cell mitosis; deposited in keratin precursor cells, making keratin resistant to fungal invasion.
Natamycin is a polyene antifungal that binds to ergosterol in fungal cell membranes, increasing permeability and causing cell death.
250-375 mg orally once daily or 500-750 mg orally once daily for severe infections.
One drop of 5% ophthalmic suspension into the conjunctival sac every 1-2 hours for 48 hours, then taper to one drop 4-6 times daily.
None Documented
None Documented
9-24 hours (mean 15 hours); prolonged in liver disease.
Not well characterized due to minimal systemic absorption; estimated to be 2-3 hours in plasma if absorbed.
Renal (<1% unchanged); fecal (36% as metabolites); tissue deposition may persist for weeks.
Primarily fecal via biliary elimination; less than 5% renal excretion of absorbed dose.
Category D/X
Category C
Antifungal
Antifungal, Ophthalmic