Hydronix is used in the treatment of some kinds of cancer and to prevent painful episodes associated with sickle cell anemia. It may be also used to treat some other conditions. It is sometimes used with certain other medicines as part of combination chemotherapy. Hydronix can be taken with or without food, but try to have it at the same time every day to get the most benefits. Your doctor will decide what dose is necessary and how often you need to take it. This will depend on what you are being treated for and may change from time to...