Bupropion
"Wellbutrin was an absolute lifesaver for me when I first began taking it in 2014.  It was the first drug to give me an actual, noticeable boost to my mood that allowed a dramatic increase in my day-to-day functioning ability. After my daughter was born, I continued to take Wellbutrin.  For six months, my daughter slept less than 7 hours per day and was constantly agitated to the point that she'd simply scream for hours on end.  Eventually, the doctors who were trying to determine what was happening took a serum level and found that she was getting a huge dose of my Wellbutrin through breastmilk.  It was a horrific experience, but as soon as I stopped breastfeeding, she finally began normal sleep cycles.  Don't stop Wellbutrin - just be aware"