Background: Warfarin is an oral anticoagulant involved in important interactions with foods and other drugs. Objectives: To evaluate the occurrence of adverse events reported by warfarin users and their relationship with drug interactions. Methods: This was an open cohort, prospective study conducted in an 18-month period with warfarin users attending public health clinics of the city of Ijuí, Brazil. Data were collected by means of interviews administered at patients’ home every month. Patients’ responses were confirmed by review of medical […]

Abstract Background: During its commercialization phase, unprecedented effects of new medicaments can be discovered. Dabigatran is an anticoagulant approved by Brazilian National Health Surveillance Agency in 2008. Objectives: To assess safety, effectiveness adverse event profile and adherence to dabigatran (110 mg and 150 mg) prescribed for patients with non-valvular atrial fibrillation. Methods: Patients taking dabigatran were subjected to interviews during the first year of treatment, evaluating the prescription depending on the dose, age, gender and risk factors as well as […]