Clexane injection contains the active ingredient enoxaparin, which is a type of medicine called a low molecular weight heparin. It is used to stop blood clots forming within the blood vessels.
Blood clots normally only form to stop bleeding that has occurred as a result of injury to the tissues. The clotting process is complicated and begins when blood cells called platelets clump together and produce chemicals that activate the clotting process. The final part of this process involves a substance called thrombin being activated to produce a protein called fibrin. Fibrin binds the platelets together, forming a blood clot. This is the bodys natural way of repairing itself.
Sometimes, however, a blood clot can form abnormally within the blood vessels. This is known as a thrombus. It can be dangerous because the clot may detach and travel in the bloodstream, where it becomes known as an embolus. The embolus may eventually get lodged in a blood vessel, thereby blocking the blood supply to a vital organ such as the heart, brain or lungs. This is known as a thromboembolism.
Some people have an increased tendency for blood clots to form within the blood vessels. This is usually due to a disturbance in the blood flow within the blood vessels. For example, in coronary artery disease, fatty deposits (atherosclerosis) on the walls of the coronary arteries can disrupt the blood flow, giving a tendency for platelets to clump together and start off the clotting process. When a clot has formed in a coronary artery this reduces the flow of blood to the heart and causes chest pain (angina). It can also result in a heart attack.
Slow blood flow in the leg and pelvic veins can also result in clots forming in these veins (deep vein thrombosis). These clots can break off and travel to the lungs (pulmonary embolism). Being immobile for long periods of time, for example due to a severe medical condition or following surgery, can increase the risk of these types of blood clot.
Enoxaparin is used to prevent and treat these types of abnormal blood clots. It works by inactivating thrombin in the clotting process described above. This stops the formation of fibrin, the essential component of blood clots. The medicine is administered by injection under the skin (subcutaneous injection).
Enoxaparin can also be used to prevent blood clotting when it is filtered through a kidney dialysis machine.
This medicine should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.
Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here does not mean that all people using this medicine will experience that or any side effect.
The side effects listed above may not include all of the side effects reported by the drug's manufacturer.For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.
It is important to tell your doctor or pharmacist what medicines you are already taking, including those bought without a prescription and herbal medicines, before you start treatment with this medicine. Similarly, check with your doctor or pharmacist before taking any new medicines while having treatment with this one, to ensure that the combination is safe.
There may be an increased risk of bleeding or increased time taken to stop bleeding, if this medicine is used in combination with medicines that affect blood clotting, such as the following:
There may be an increased risk of a rise in the amount of potassium in your blood if this medicine is used in combination with any of the following:
The amount of potassium in your blood should be regularly monitored if you are taking any of these during treatment with this medicine.
There are currently no other medicines available in the UK that contain enoxaparin as the active ingredient.