Information Patient leaflets Antithyroid drugs alert card Agranulocytosis and serious liver injury are extremely rare, yet serious, complications that can arise in patients taking antithyroid drugs (ATD) to treat hyperthyroidism (overactive thyroid). To help you and others recognise these symptoms, we recommend downloading this alert card and carrying it with you at all times. Download leaflet Order FOC from our shop This alert card is provided free of charge to patients; however, we would welcome a donation to help cover our costs If you are ordering for a hospital or health centre please order from our bulk order form If you are ordering from overseas, we will require you to pay the postage costs in GBP (£) We will contact you to advise how much this will be. Find more resources, including patient stories, films and details of our support network here Living with hyperthyroidism We rely on donations to fund our work providing information and support to help people in the UK live better with thyroid disease. Please consider making a donation or becoming a member. Please donate Become a member Manage Cookie Preferences Please ensure Javascript is enabled for purposes of website accessibility