Hi, they'll take a while to get going. I'm guessing you're also on the bicalutamide pills for a few weeks too?
The only thing I've found is, that every man is different. Yes, there'll be some common side effects but we all suffer differently....I'm just starting on mirtazapine to help with my anxiety, depression and meltdowns but I've friends who've not had any of that. Some get fatigue...not me! There's a big list (thanks to Andrew Gabriel for that) on my blog.
Let us know how you get on...