Is there generic for Xalatan (latanoprost) and does it have the same ingreidents in it because Xalatan (latanoprost) cost 100 dollars?

Yed there is . Latanoprost is the generic name for xalatan, (latanoprost) however it may still be about the same price at the pharmacy your ophthalmologist may have coupons on some brand name alternative medications that will be less expensive.
Yes. The active ingredient in xalatan is latanoprost and there are several companies making generics. The problem with the generic is that while the active ingredient is the same, the vehicle or liquid it comes in varies and can alter the effect and side effects. I have had many patients with a good response to xalatan develop side effects and a poor response to a generic.