Reglan to increase milk supply?

So my pp appointment was today. I'm 8 weeks pp and have had a big dip in my milk supply. It's a long story but trust me I've tried literally everything. My OB prescribed me Reglan to help increase my supply. I took one with food as directed and I have had the WORST diarreah all day! Something I don't have time for when I'm home alone with my LO. Has anyone else taken reglan and if so does this side effect ease up? I really want my milk supply to come back but I can't do it at the expense of my stomach.