Comparative Pharmacology
Head-to-head clinical analysis: FML versus PREDNISOLONE EYE DROPS.
Peer-Reviewed Evidence
Head-to-head clinical analysis: FML versus PREDNISOLONE EYE DROPS.
FML vs Prednisolone Eye Drops
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Agonist at glucocorticoid receptors, leading to inhibition of phospholipase A2 via annexin-1 induction, reducing prostaglandin and leukotriene synthesis; also suppresses cytokine production and inflammatory cell migration.
Corticosteroid that binds to glucocorticoid receptors, modulating gene expression and suppressing inflammatory mediators such as prostaglandins and leukotrienes.
Fluorometholone ophthalmic suspension 0.1%: Instill 1 drop into conjunctival sac 2-4 times daily. In severe conditions, may increase to 1 drop every hour initially.
Instill 1-2 drops into the conjunctival sac of the affected eye(s) four times daily. In severe cases, dosing may be initiated with 1-2 drops every 1-2 hours and tapered upon improvement.
None Documented
None Documented
The terminal elimination half-life of fluorometholone is approximately 1.5 hours in plasma. Clinically, this short half-life allows for multiple daily dosing; however, ocular administration results in sustained local effects due to corneal binding.
Plasma: 2-4 hours; tissue effects persist 18-36 hours. Clinically, duration of adrenal suppression may exceed plasma half-life.
FML (fluorometholone) is primarily metabolized in the liver, with metabolites excreted renally. Approximately 70-80% of the dose is eliminated in urine as metabolites, with less than 5% as unchanged drug. Fecal excretion accounts for about 10%.
Renal (primarily as metabolites): ~70% after oral dose; unchanged drug: <20%. Biliary/fecal: minor.
Category C
Category A/B
Ophthalmic Corticosteroid
Ophthalmic Corticosteroid