Zildox 50mg Injection is used in the treatment of cancer of colon and rectum. It shows its working by stopping or slowing down the growth of cancer cells. Zildox 50mg Injection is given as an injection into vein by a qualified medical professional. 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. Nausea, fatigue, vomiting, and diarrhea are some common side effects of this medicine. This medicine may reduce the number of blood cells (decrease red blood and white blood cells) in your blood, thereby, increasing the susceptibility to infections. It may cause some serious allergic reaction, inform your doctor if you notice sore lips or mouth ulcers, rash, itching and difficulty breathing. Regular blood tests are required to check your blood cells along with heart, liver, and blood uric acid levels. Before taking it, tell your doctor if you have heart disease, liver, or kidney problems or are taking any medicines to treat infections. Many other medicines can affect, or be affected by, this medicine so let your healthcare team know all medications you are using. This medicine is not recommended during pregnancy or while breastfeeding. It makes men infertile, hence men should take doctor advice about the freezing of sperm before the treatment. You must avoid driving after taking this medicine as it may cause dizziness.