Answer
Using latanoprost with another prostaglandin analogue eye drop is not recommended because using two together has been reported to paradoxically increase pressure inside the eye.
Sources for this answer
- Xalatan 50 micrograms/ml Eye Drops, SolutionViatris (formerly Mylan or Upjohn) · emc · SmPC §4.5 Interaction with other medicinal products · Version 29Document updated
Sources checked