BE CAREFUL WITH VITAMIN D3 - IT STOPS THE EFFECTIVENESS OF REMICADE
If you are on Remicade for arthritis and it stops working (i.e., you start having severe joint pain out of the blue), determine if you have started a new supplement that contains Vitamin D3. If 'yes' - STOP. You'll be better in a week or so. I experimented twice and determined - it's the Vitamin D3. Other things that have the same effect are grapefruit juice and, to a lesser extent, other citrus juices - but the effect is almost immediate with the juices - a few hours, whereas the pain from Vitamin D3 takes a few days to appear once you start the supplement. It is truly debilitating. Note; I have also had negative effects from simply eating grapefruit, oranges, some variety of strawberries and some variety of tomatoes - but not as severe as when drinking juice (because of the concentration).