Take special care with Doxazosin Retard Arrow 4 mg prolonged release tablets and associated names • if you have problems with your heart or a history of heart disease • if you have liver disease or you are taking medicines to control the way your liver works such as cimetidine or if you are undergoing dialysis • if you suffer from diabetic autonomic neuropathy, a disease associated with diabetes which affects your nervous system. • If you are under 18 years of age.