This information is intended for patients prescribed apixaban in UK only.

What is venous thromboembolism (VTE)?

Venous means related to the veins. A thrombosis occurs when a blood vessel which carries blood around the body gets blocked by a blood clot (a thrombus). If a blood clot dislodges from where it was formed and travels in the blood until it becomes stuck in a narrower blood vessel elsewhere in the body, it is called an embolus.

A deep vein thrombosis (DVT) is a blood clot that forms in the deep leg veins that run through the muscles of the calf and thighs.

A DVT can partially or completely block the blood flow in the vein causing symptoms of pain, tenderness, and swelling of the calf which can sometimes become warm and red. In some situations there are no symptoms and a DVT is only diagnosed if a complication occurs such as a pulmonary embolism.

A pulmonary embolism (PE) is where some of the clot from a DVT breaks off and travels to the narrower vessels of the lungs where it gets stuck, blocking the blood flow to a part of the lung. Symptoms of a PE include chest pain and breathlessness and need urgent treatment. If you experience any of these symptoms, you must seek medical attention immediately – call 999.

Venous thromboembolism (VTE) is a word used to describe both DVTs and PEs.

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Patients prescribed apixaban

This section is intended for patients prescribed apixaban in the UK to provide information on this medicine, and its uses. It is not intended to replace in any way the opinion of a healthcare professional. For specific information about the pathology and/or detection, diagnosis, prognosis, administration and, where applicable, appropriate treatment for each specific case, please promptly consult a healthcare professional. The use of this website is subject to the legal notice, the privacy and cookie policy, the pharmacovigilance notice (if appropriate) and the applicable laws and regulations.

Report Side Effects

If you experience any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the package leaflet. You can also report side effects directly via the Yellow Card Scheme at

Side effects for this medicine should also be reported to Bristol-Myers Squibb Medical Information on 0800 731 1736 or