Does Lexapro cause weight gain and if so, why?

Hi, Fabian!
Weight changes with Lexapro can go either way in a small number of people:
"Metabolic
Common (1% to 10% of users): Decreased appetite, increased appetite, weight decreased, weight increased"
These changes are partially due to it's effects on your appetite but also metabolic changes such as a slower/faster metabolism and changes to the fat storage system. Everybody responds differently to this type of medication so it's hard to predict how it will affect you.
Best regards,
Wildcat
Please post again if you have more questions or concerns.