Why HCPro

I have been on lexapro for around 9 months. I started on 10mg then went to 15mg (liquid version). It worked well to start off but then it started to not work as often. It made me gain 13kgs in the span of 7 months and for that side effect, the drug wasnt doing enough for me. I am now going to change to another medicine, maybe prozac and see how I go. https://www.ubcpharmacy.org/product/lexapro/