I used Motillium for a year for my son. It is supposed to be safe for a year, but no trials had been done longer than a year, so after a year I stopped, and lost my supply (cleft bub with no suction, so by pump only). If your loving it, no need to stop. Breastmilk, even with a trace amount of Motillium is better than formula if you want to keep going babe. Motillium is also given to children, so cant be that bad! LOL