Comparative Pharmacology
Head-to-head clinical analysis: NATACYN versus NYSTEX.
Peer-Reviewed Evidence
Head-to-head clinical analysis: NATACYN versus NYSTEX.
NATACYN vs NYSTEX
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Natamycin is a polyene antifungal that binds to ergosterol in fungal cell membranes, increasing permeability and causing cell death.
Nystatin binds to ergosterol in fungal cell membranes, forming pores that disrupt membrane integrity and lead to leakage of intracellular contents and cell death.
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.
Topical: Apply thin layer to affected area twice daily. Oral suspension (nystatin): 500,000-1,000,000 units (5-10 mL) four times daily for candidiasis. Vaginal tablets: 1 tablet (100,000 units) intravaginally once daily for 14 days.
None Documented
None Documented
Not well characterized due to minimal systemic absorption; estimated to be 2-3 hours in plasma if absorbed.
Variable; estimated 2-5 hours for systemic absorption (if any), but negligible systemic levels due to poor absorption.
Primarily fecal via biliary elimination; less than 5% renal excretion of absorbed dose.
Primarily fecal (>95%) as unchanged drug; minimal renal excretion (<1%).
Category C
Category C
Antifungal, Ophthalmic
Antifungal