For some context, I'm pretty new to this medication thing and I'm Brazilian. I don't know if that makes any difference but I saw that the pills we take are different. I don't know what else could be different.

I noticed quickly that it's been less than a week and I already feel happier when I take it. Don't know if it's because I can get on good mood without the pill (but it's usually harder for that to happen) or it's just in my head, something like placebo effect.

This question is because I saw that it takes weeks or months to the medication stabilize and I already feel good with mine.

So, is that common? or it could be something else? like, maybe it's still stabilizing?