Warfarin is a medicine available in a number of countries worldwide. A list of US medications equivalent to Warfarin is available on the Drugs.com website. After successful consideration among the FAMHP, the National Institute for Health and Disability Insurance (RIZIV-INAMI) and the manufacturer Therabel, the manufacturer has decided to continue to produce the drug Marevan. 4 which may cause difficulty in swallowing or breathing These are very serious side effects. You may need urgent medical attention or hospitalisation. MAREVAN™ Tablets 1 MAREVAN™ Tablets Warfarin Tablets 1 mg, 3 mg and 5 mg New Zealand Consumer Medicine Information. What is in this leaflet The anti-clotting drug warfarin, commonly known by the brand name Coumadin, is no longer recommended for the treatment of atrial fibrillation except for a select subset of patients, according to. Warfarin is an anticoagulant, which means that it increases the time it takes for your blood to clot. It works by reducing the effects of vitamin K, which is a vitamin your body uses in the process of blood-clotting. If you take warfarin, it is important that you use it safely and correctly, because bleeding is one of its main side effects. Living with warfarin means you will need to follow special steps to reduce your risk of bleeding. Warfarin, sold under the brand name Coumadin among others, is a medication that is used as an anticoagulant (blood thinner). It is commonly used to treat blood clots such as deep vein thrombosis and pulmonary embolism and to prevent stroke in people who have atrial fibrillation, valvular heart disease or artificial heart valves. Less commonly. Tablet. White, flat, circular, bevel-edged uncoated tablets having 'M' breakline '0.5' on one side and plain on other side. The score line is not intended for breaking the tablet. My husband has been on Warfarin for about 2 months due to multiple PE's in his lungs. For the past month he has been getting terrible bouts of dizziness and overall feeling terrible. he is ready to stop taking it. does anyone have any suggestions.