Relicitabine 500 Tablet is utilized in the treatment of cancer of breast, colon, and rectum. It may be also utilized to treat other conditions, as determined by the doctor. It is utilized alone or in mix with some other medication as a part of chemotherapy. Relicitabine 500 Tablet should be taken with food within 30 minutes after eating a meal. 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 time. You should take it exactly as your doctor has advised. Taking it in the wrong way or taking too much can cause very serious side effects. It may take several weeks or months for you to see or feel the benefits but do not stop taking it unless your doctor tells you to. The most common side effects of this medication include vomiting, weakness, nausea, abdominal pain, and diarrhea. This medication may reduce the number of blood cells (decrease white blood cells) in your blood, thereby, increasing the susceptibility to infections. Regular blood tests are required to check your blood cells along with heart, liver, and blood uric acid levels.