Hi, I Am On Lexapro 5 Mg, Klonopin 2 Mg,

Hi,
I am on Lexapro 5 mg, Klonopin 2 mg, Keppra 1000mg and solian (100mg, amisulpride). I was on Exitelev before (it's levetiracetam but by Sandoz, a biosimilar). It seems that there are differences between the effect of Keppra and the biosimilar, so my psychiatrist decided to give me Keppra. I've been told that i'll see the bebenfits of Keppra between 2 and 4 weeks, but i would like to know if i'll see some benefits since the second week and then more and more improvement, or an irregular one,
Thanks beforehand
Marcos