Thanks for your question on Healthcare Magic. I can understand your concern. Yes, you are right. Allopurinol can interact with blood thinners and reduce their therapeutic effects. So better to avoid allopurinol. Allopurinol is given for hyperuricemia. Febuxostat is another newer drug for hyperuricemia which safe and not having any drug interactions. So ask your doctor about starting febuxostat instead of allopurinol. Hope I have solved your query. I will I will be happy to help. Wishing good health to your mother. Thanks.