Xylase® belongs to a group of medicines known as prostaglandin analogues. Dosage Form: Drops Dosage: Recommended therapy is one eye drop in the affected eye(s) once daily. Optimal effect is obtained if latanoprost eye drops is administered in the evening. Target Consumer: Ophthalmologists, Optometrists, Ophthalmic Nurses, Retail Pharmacists, Hosp. Pharmacists,