Addphos Granules is a medicine used to treat high calcium levels in the blood and hyperparathyroidism. It works by binding with calcium which makes their level go back to normal. Addphos Granules can be taken with or without food. It should be taken exactly as prescribed by your doctor. Your doctor will decide the dose and how often you should take them. You should take this medicine regularly to get the most benefit from it. Do not stop taking the medicine even if you feel better unless the doctor tells you so. The medicine is generally well tolerated, however, it may cause nausea and diarrhea in some people. Let your doctor know if any of these side effects do not go away with time or get worse. Before using this medicine, inform your doctor if you have any problems with your kidney or liver. You should also tell your doctor all the other medications you are taking.