I have depression as well, and used motillium to boost supply when DD2 refused to feed and I had to pump for a while. After speaking with a few Lactation consultants and nutritionists, they were all convinced it was better for me to get as much breastmilk into DD as possible, and that formula was not as good as breast milk with motillium in it. I kept on motillium for a few months and slowly we weaner her back onto breast and no formula (I used goats milk formula as it is the closest thing to breast milk).