Ex vivo blev påvist, at én enkelt topikal okulær dosering af nepafenac hæmmer prostaglandinsyntese i iris/ corpus ciliare (85% - 95%) og i retina/ choroidea (55%) i op til henholdsvis 6 og 4 timer.
Ex vivo, a single topical ocular dose of nepafenac was shown to inhibit prostaglandin synthesis in the iris/ ciliary body (85%-95%) and the retina/ choroid (55%) for up to 6 hours and 4 hours, respectively.