17-phenyl trinor Prostaglandin F2α (17-phenyl trinor PGF2α) amide is a derivative of the FP receptor agonist 17-phenyl trinor PGF2α ethyl amide (bimatoprost) with an unsubstituted amide.¹ As with bimatoprost and other prostaglandin amides, the amide of 17-phenyl trinor PGF2α amide may be hydrolyzed to the free acid form in human eyes.^2,3,4 Like other amide isomers of F-type prostaglandins, 17-phenyl trinor PGF2α amide may have similar FP receptor activation and intraocular pressure (IOP) reduction activities.³ It has a lower hydrolysis rate in primary human corneas compared to isopropyl ester-protected prodrugs.⁴