Andrea, you might want to try to get a Friday afternoon appointment if possible and if you don't work Saturday or Sunday just in case you don't feel well a day or two after the removal. I am in the process of getting my amalgams removed and have had severe nausea one time the day after, and another time I had more mild nausea for a few days. I don't know whether it was from the novacaine(which usually has sulphites as a preservative) or from the mercury, or from some other chemicals the dentist used. I am also very chemically sensitive. So far I have had my amalgams replaced with porcelain inlays and onlays. Those were large fillings. The dentist wants to use composites for the smaller fillings. He is not a holistic dentist but wants to replace many of my fillings since they are mostly 20-35 years old and he is worried about decay possibly forming under them(I already needed one root canal because of this). He doesn't use Diamond Lite, and I am afraid I might have a reaction to the composite he uses.

One thing I read on the net is that vitamin c reduces the effectiveness of novacaine and other local anesthetics, and a website recommended not taking vitamin c within 24 hours before getting dental work.