A common way of treating Deep Vein Thrombosis is the administration of medicines. The most common types of drugs which are administrated are the following: Anticoagulants: these substances are used in order to reduce the possibility of the blood to form clots; in addition, they stop the existing clots from getting bigger but hey do not have the power to break up these blood clots. These drugs can be injected under the skin or they can be administrated orally or using s tube which is introduced into a vein. This kind of treatment usually lasts for a couple of months, but there are some situations in which the length of the treatment can be modified: the period can be shorter when the clop appeared after a surgery and it can be longer when the patient suffered from this disorder previously or when he also suffers of other diseases, such as cancer.