I'll just jump in and say I'm on Wellbutrin SR (150mg 2x day, 300mg total) and I did notice the "honeymoon" phase of the medication right away (within 48 hrs). I had a ton of energy, felt like I could accomplish so much more, was happier than ever, and felt like my most social self. That last about 2 weeks and then I leveled out to just feeling good to OK. I am happy where I'm at, and I still have more energy than when I was on Lexapro... made me soooo lethargic! I will say I'm more emotional in general on the Wellbutrin, but in good ways. I feel more empathy towards others and get teary easier at happy moments (example, a friend's wedding last month). I think it's a good drug for me, I hope you find that it works well for you too. Also, I take it with 200mg Lamictal, guess I should have said that before