OBJECTIVES: To determine if the tool Prometex – Promevoz, helps in reducing the drug therapy use problems identified in the Pharmacotherapy Monitoring for pharmaceutics. METHODS: Prometex – Promevozis a tool for telephony (voice and text messages) you want, combined with other strategies, to maintain and increase drug compliance, remembering the exact times of taking medication. With prior consent, information is sent to all medications they are prescribed, coded for strictly personal interpretation and handling of confidential and bidirectional. A descriptive longitudinal, which includes users with at least two visits to Pharmacotherapy Monitoring, a pre and post-deployment of telephony tool. Demographic variables are analyzed and compared in an exploratory way in the same population type and amount of drug therapy use problems at the beginning and end of use of the tool. RESULTS: 25.6% of patients had at least 1 drug therapy use problems during the first consultation of Pharmacotherapy Monitoring, a situation that changed after the use of Prometex – Promevoz, which decreased the proportion of patients with drug therapy use problems to 16.7%. A decrease between the two observations of 53.3% with a chi squeare (ji2) of 9,56 and a p value of 0,002. CONCLUSIONS: The tool Prometex – Promevoz appears to contribute to the decline in drug therapy use problemsidentified in the Pharmacotherapy Monitoring.