Is it okay to take Milk of Magnesia while experiencing gall bladder issues? I have been constipated for two weeks and metamucil is not helping. I have a HIDA scan scheduled next week to get a better look at what s going on. My doctor thinks that there is sludge blocking part of the duct, as my ultrasound did not show any stones. I have had some gall bladder pain recently, but it is better not that I am watching my diet more carefully.