Study of the adverse reactions of hormonal contraceptives from the community pharmacy

Background: Hormonal contraceptives (HC) are very effective and safe. Nevertheless, their safety is constantly monitored due to the high number of users Aims: To find out the characteristics of HC's users, the prescription and the HC use; to investigate the user's perception of safety of the HC she currently uses; to determine the risk factors, diseases, and regular medication; to identify Problems Related to the Medicines (PRM). Methods: A cross-sectional study was conducted through a non-validated questionnaire, which was administered by the pharmacist from February to July, 2013. Only took part in the study the HC users who came to the pharmacy asking for a HC. Results: During the study period, 143 women took part on it. The treatment did not work for 31.5% of them and 30.8% experienced at least, an adverse reaction (weight gain, headaches, irregular spotting, nausea, etc.). 52.5% of the users presented risk factors to suffering a cardiovascular event. During the study possible PRM were detected almost in 20% of the users. Conclusions: Nearly one in every three users experienced at least, an adverse reaction with the HC in use. The adverse reactions reported were mild and transient. More than half of the users presented added risk factors to suffer a cardiovascular event. The pharmacist has to take responsibility for the patient's pharmacotherapy and follow the treatments in order to detect PRM and improve their quality of life.