Hi @lmellegard and welcome to Mayo Clinic Connect. I see you are looking to switch your medication. The brand name is Lexapro and the generic replacement is escitalopram.
https://www.medicalnewstoday.com/articles/escitalopram-oral-tablet.
If you are looking to switch from the brand name to the generic, you can simply ask your physician to write generic only on your prescription.

Have you talked to your doctor about doing this?