Riva-Latanoprost (latanoprost) is a sterile, isotonic, buffered aqueous ophthalmic solution at 50 mcg/mL for topical administration to the eye. Each 2.5 mL bottle provides approximately 80 drops, with about 1.5 mcg of latanoprost per drop. It is supplied in a plastic ophthalmic dispenser bottle with a dropper tip, screw cap, and tamper-evident ring for secure handling. DIN 02341085. Prescription required in Canada.