The things you can’t eat when taking warfarin for a long time are mainly the drugs that have an interaction effect, foods rich in vitamin K and so on. 1. Drugs, can not take the plasma protein affinity than warfarin strong drugs, such as pau tazone, sulfonamides, etc.; can not take at the same time to inhibit the liver microsomal enzymes of the drugs, such as chloramphenicol, allopurinol, cimetidine and so on. It is also not recommended to take broad-spectrum antibiotics at the same time, which may affect prothrombinogen synthesis, not at the same time and warfarin receptor binding drugs, such as quinidine, thyroxine, phenelzine. Interference with platelet function drugs such as aspirin, clopidogrel, phenelzine, etc. should not be used at the same time. 2. Food, while taking warfarin, avoid foods rich in vitamin K, such as carrots, tomatoes, pumpkin, all kinds of leafy greens, in addition to animal liver, cheese, egg yolks, etc., because vitamin K will affect the anticoagulant effect of warfarin.