My eye dr gave me a sample of these new drops. They are under patent so they're super expensive....$400+ per ONE 5 ml bottle. I'm not sure I want to be taking a brand new drug. I realize doctors get a nice kick back from the drug manufacturers so this is a turn off also. I had been on Lumigan for 5 1/2 yr & eye pressure took a big jump in one eye. Medicare & my supplement won't cover this drug either. Thoughts......