Concerta and breastfeeding

Has anyone taken concerta and noticed decreased milk supply? My baby is 10 months old today. I have always had a good supply, but the past 5 days or so my supply has dropped a lot. I am barely able to get 3 oz total out now when i pump. I would get an average of 6 oz from each side before. I have been taking concerta for about a week and a half now. Has anyone else experienced this? TIA :)