I said this in your other thread too, its efficacy has been all over the map in studies, and in a way I'm kind of against it because of how insanely much money it makes for Pfizer. Billions. Fucking billions. I can't remember what number this drug is on the top 5 most selling drugs, but it's up there. Easily the most popular antidepressant. Why this is, I don't know, because again, its efficacy changes with each study on it.
I took it, but didn't really respond to it, even after several months. And it was a disaster when I took too much of it (which was prescribed, just as an increase in dose to see if it would help), which made me horribly irritable, agitated, suicidal, and impulsive. I was quickly taken off it at that point.
Just keep in mind we're talking about an SSRI-type antidepressant. They all share similar problems, the worst probably being how long it takes for them to work.
Read that black box warning that will come with the prescription. It's important to be aware that the drug can cause worse suicidal thinking. To make matters worse, it increases your energy very quickly. So there's a chance you'll be hyperactive and suicidal when you first start taking the drug, which is what happened to me when my dosage was increased.
Still, it does work for some people, so hey, maybe you won't have to worry about any of that. Good luck.